CVE-2019-6111: An issue was discovered in OpenSSH 7.9.
Noroxi assessment
Priority: Plan (action score 40/100)
- Public proof-of-concept code exists (Exploit-DB, GitHub); there is no record of exploitation in the wild.
- Probability of exploitation in the next 30 days: 58.2% (FIRST EPSS); higher than 99% of all records.
- Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. Special conditions such as timing or configuration are required.
- Fixed version: openssh (Alpine:v3.10) 7.9_p1-r3; dropbear (Alpine:v3.24) 2026.91-r0, 2025.89-r0; openssh (Alpine:v3.6) 7.5_p1-r4.
Add it to your regular patch cycle. Upgrade to openssh (Alpine:v3.10) 7.9_p1-r3; dropbear (Alpine:v3.24) 2026.91-r0, 2025.89-r0; openssh (Alpine:v3.6) 7.5_p1-r4 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the scp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious scp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the scp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file).
- BDU:2019-00830
- BDU:2019-03788
- DLA-1728-1
- DSA-4387-1
- DSA-4387-2
- openSUSE-SU-2019:0091-1
- openSUSE-SU-2019:0307-1
- openSUSE-SU-2024:11124-1
- RHSA-2019:3702
- RLSA-2019:3702
- SUSE-SU-2019:0125-1
- SUSE-SU-2019:0125-2
- SUSE-SU-2019:0126-1
- SUSE-SU-2019:0132-1
- SUSE-SU-2019:0496-1
- SUSE-SU-2019:0941-1
- SUSE-SU-2019:13931-1
- SUSE-SU-2019:14016-1
- SUSE-SU-2019:14030-1
- SUSE-SU-2019:1524-1
- Published
- Jan 31, 2019
- Updated
- Oct 14, 2026
- EPSS
- 58.2% · 99th percentile
- CWE
- CWE-22
Report tools
Action score
40
Plan
Add it to your regular patch cycle.
- CVSS
- 23 / 40 · 5.9 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 17 / 30 · 58.2%
CISA SSVC decision
- Exploitation
- proof of concept
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 5.9
- CNA · mitre
- 5.9
- agree
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- Proof of concept exists, no weaponized module
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| openbsd | openssh | cpe:2.3:a:openbsd:openssh |
| winscp | winscp | cpe:2.3:a:winscp:winscp |
| canonical | ubuntu linux | cpe:2.3:o:canonical:ubuntu_linux |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| redhat | enterprise linux | cpe:2.3:o:redhat:enterprise_linux |
| redhat | enterprise linux eus | cpe:2.3:o:redhat:enterprise_linux_eus |
| redhat | enterprise linux server aus | cpe:2.3:o:redhat:enterprise_linux_server_aus |
| redhat | enterprise linux server tus | cpe:2.3:o:redhat:enterprise_linux_server_tus |
| fedoraproject | fedora | cpe:2.3:o:fedoraproject:fedora |
| apache | mina sshd | cpe:2.3:a:apache:mina_sshd |
| freebsd | freebsd | cpe:2.3:o:freebsd:freebsd |
| fujitsu | m10-1 firmware | cpe:2.3:o:fujitsu:m10-1_firmware |
and 15 more
Is OpenSSH on your server exposed to the internet?
The free port scanner finds the open ports on your server and matches the service versions it can read against known vulnerabilities. No account needed.
Run a port scanAffected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- apache mina sshd2.2.0
- canonical ubuntu linux14.04
- canonical ubuntu linux16.04
- canonical ubuntu linux18.04
- canonical ubuntu linux18.10
- debian debian linux8.0
- debian debian linux9.0
- fedoraproject fedora30
- freebsd freebsdbefore 12.0
- freebsd freebsd12.0
- fujitsu m10-1 firmwarebefore xcp2361
- fujitsu m10-1 firmwarebefore xcp3070
- fujitsu m10-4 firmwarebefore xcp3070
- fujitsu m10-4 firmwarebefore xcp2361
- fujitsu m10-4s firmwarebefore xcp3070
- fujitsu m10-4s firmwarebefore xcp2361
- fujitsu m12-1 firmwarebefore xcp2361
- fujitsu m12-1 firmwarebefore xcp3070
- fujitsu m12-2 firmwarebefore xcp3070
- fujitsu m12-2 firmwarebefore xcp2361
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Alpine:v3.10 | openssh | before 7.9_p1-r3 | 7.9_p1-r3 |
| Alpine:v3.24 | dropbear | before 2026.91-r0 | 2026.91-r0 |
| Alpine:v3.24 | dropbear | before 2025.89-r0 | 2025.89-r0 |
| Alpine:v3.6 | openssh | before 7.5_p1-r4 | 7.5_p1-r4 |
| Alpine:v3.7 | openssh | before 7.5_p1-r10 | 7.5_p1-r10 |
| Alpine:v3.8 | openssh | before 7.7_p1-r4 | 7.7_p1-r4 |
| Debian:12 | openssh | before 1:7.9p1-9 | 1:7.9p1-9 |
| Debian:8 | openssh | before 1:6.7p1-5+deb8u8 | 1:6.7p1-5+deb8u8 |
| Debian:9 | openssh | before 1:7.4p1-10+deb9u6 | 1:7.4p1-10+deb9u6 |
| Debian:9 | openssh | before 1:7.4p1-10+deb9u5 | 1:7.4p1-10+deb9u5 |
| openSUSE:Leap 15.0 | openssh | before 7.6p1-lp150.8.9.1 | 7.6p1-lp150.8.9.1 |
| openSUSE:Leap 15.0 | openssh | before 7.6p1-lp150.8.15.2 | 7.6p1-lp150.8.15.2 |
| openSUSE:Tumbleweed | openssh | before 8.4p1-7.4 | 8.4p1-7.4 |
| Red Hat:enterprise_linux:8::appstream | openssh-askpass | before 0:8.0p1-3.el8 | 0:8.0p1-3.el8 |
| Red Hat:enterprise_linux:8::appstream | openssh-askpass-debuginfo | before 0:8.0p1-3.el8 | 0:8.0p1-3.el8 |
| Red Hat:enterprise_linux:8::appstream | openssh-cavs-debuginfo | before 0:8.0p1-3.el8 | 0:8.0p1-3.el8 |
| Red Hat:enterprise_linux:8::appstream | openssh-clients-debuginfo | before 0:8.0p1-3.el8 | 0:8.0p1-3.el8 |
| Red Hat:enterprise_linux:8::appstream | openssh-debuginfo | before 0:8.0p1-3.el8 | 0:8.0p1-3.el8 |
| Red Hat:enterprise_linux:8::appstream | openssh-debugsource | before 0:8.0p1-3.el8 | 0:8.0p1-3.el8 |
| Red Hat:enterprise_linux:8::appstream | openssh-keycat-debuginfo | before 0:8.0p1-3.el8 | 0:8.0p1-3.el8 |
| Red Hat:enterprise_linux:8::appstream | openssh-ldap-debuginfo | before 0:8.0p1-3.el8 | 0:8.0p1-3.el8 |
| Red Hat:enterprise_linux:8::appstream | openssh-server-debuginfo | before 0:8.0p1-3.el8 | 0:8.0p1-3.el8 |
| Red Hat:enterprise_linux:8::appstream | pam_ssh_agent_auth-debuginfo | before 0:0.10.3-7.3.el8 | 0:0.10.3-7.3.el8 |
| Red Hat:enterprise_linux:8::baseos | openssh | before 0:8.0p1-3.el8 | 0:8.0p1-3.el8 |
+25
Same product
openbsd: all recordsOther highest-scoring records for the same primary product.
- CVE-2023-38408The PKCS#11 feature in ssh-agent in OpenSSH before 9.3p2 has an insufficiently trustworthy search path, leading to remote code execution if 63This week
- CVE-2018-15473OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying bailout for an invalid authenticating user until after 60This week
- CVE-2016-6210sshd in OpenSSH before 7.3, when SHA256 or SHA512 are used for user password hashing, uses BLOWFISH hashing on a static password when the us60This week
Published before and after this one in the same product
- ← EarlierCVE-2019-6109Jan 31, 2019 · An issue was discovered in OpenSSH 7.9.28Monitor
- ← EarlierCVE-2019-6110Jan 31, 2019 · In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from the server, a malicious server (or Man-in-The-Middle attacker) 34Monitor
- Later →CVE-2019-16905Oct 9, 2019 · OpenSSH 7.7 through 7.9 and 8.x before 8.1, when compiled with an experimental key type, has a pre-authentication integer overflow if a clie32Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| alpine:dropbear | 2025.89-r0 · Alpine:v3.24 | Package registry (OSV) |
| alpine:openssh | 7.9_p1-r3 · Alpine:v3.10 | Package registry (OSV) |
| debian:openssh | 1:7.9p1-9 · Debian:12 | Package registry (OSV) |
| opensuse:openssh | 7.6p1-lp150.8.9.1 · openSUSE:Leap 15.0 | Package registry (OSV) |
| red hat:openssh | 0:8.0p1-3.el8 · Red Hat:enterprise_linux:8::baseos | Package registry (OSV) |
| red hat:openssh-askpass | 0:8.0p1-3.el8 · Red Hat:enterprise_linux:8::appstream | Package registry (OSV) |
| red hat:openssh-askpass-debuginfo | 0:8.0p1-3.el8 · Red Hat:enterprise_linux:8::appstream | Package registry (OSV) |
| red hat:openssh-cavs | 0:8.0p1-3.el8 · Red Hat:enterprise_linux:8::baseos | Package registry (OSV) |
| red hat:openssh-cavs-debuginfo | 0:8.0p1-3.el8 · Red Hat:enterprise_linux:8::appstream | Package registry (OSV) |
| red hat:openssh-clients-debuginfo | 0:8.0p1-3.el8 · Red Hat:enterprise_linux:8::appstream | Package registry (OSV) |
| red hat:openssh-debuginfo | 0:8.0p1-3.el8 · Red Hat:enterprise_linux:8::appstream | Package registry (OSV) |
| red hat:openssh-debugsource | 0:8.0p1-3.el8 · Red Hat:enterprise_linux:8::appstream | Package registry (OSV) |
| red hat:openssh-keycat-debuginfo | 0:8.0p1-3.el8 · Red Hat:enterprise_linux:8::appstream | Package registry (OSV) |
| red hat:openssh-ldap-debuginfo | 0:8.0p1-3.el8 · Red Hat:enterprise_linux:8::appstream | Package registry (OSV) |
| red hat:openssh-server-debuginfo | 0:8.0p1-3.el8 · Red Hat:enterprise_linux:8::appstream | Package registry (OSV) |
| red hat:pam_ssh_agent_auth-debuginfo | 0:0.10.3-7.3.el8 · Red Hat:enterprise_linux:8::appstream | Package registry (OSV) |
| rocky linux:openssh | 0:8.0p1-30.el8_10 · Rocky Linux:8 | Package registry (OSV) |
| suse:openssh | 6.6p1-54.26.1 · SUSE:Linux Enterprise Server 12-LTSS | Package registry (OSV) |
| suse:openssh-askpass-gnome | 6.6p1-54.26.1 · SUSE:Linux Enterprise Server 12-LTSS | Package registry (OSV) |
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Exploit-DB entry ×2
- Proof-of-concept repository on GitHub ×2
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | remote | 2019-01-11 |
| Exploit-DB entry | remote | 2019-01-18 |
| Proof-of-concept repository on GitHub | stars:4 | 2020-05-12 |
| Proof-of-concept repository on GitHub | stars:0 | 2024-07-01 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- First PoC-21 d
- Published
- TodayOct 25, 2026+2824 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- Special conditions such as timing or configuration are required.
If successful
- Confidentiality
- none
- Integrity
- high · data or configuration can be modified
- Availability
- none
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- High
- Availability impact
- None
Weakness class (CWE)
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
nvd-primary
Root cause
A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.
The bug in code
The whole CWE-22 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
const file = path.join(ROOT, req.query.name);
res.sendFile(file);Fixed
const file = path.resolve(ROOT, req.query.name);
if (!file.startsWith(ROOT + path.sep)) {
return res.sendStatus(400);
}
res.sendFile(file);Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Path TraversalCAPEC-126likelihood: High · Very High
- Using Slashes and URL Encoding Combined to Bypass Validation LogicCAPEC-64likelihood: High · High
- Manipulating Web Input to File System CallsCAPEC-76likelihood: High · Very High
- Using Escaped Slashes in Alternate EncodingCAPEC-78likelihood: High · High
- Using Slashes in Alternate EncodingCAPEC-79likelihood: High · High
ATT&CK techniques
—
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (19 more)Show less
- www.openwall.com/lists/oss-security/2019/04/18/1
- www.openwall.com/lists/oss-security/2022/08/02/1
- www.securityfocus.com/bid/106741
- access.redhat.com/errata/RHSA-2019:3702
- cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- cvsweb.openbsd.org/src/usr.bin/ssh/scp.c
- lists.apache.org/thread.html/c45d9bc90700354b58fb7455962873c44229841880dcb64842fa7d23%40%3Cdev.mina.apache.org%3E
- lists.apache.org/thread.html/c7301cab36a86825359e1b725fc40304d1df56dc6d107c1fe885148b%40%3Cdev.mina.apache.org%3E
- lists.apache.org/thread.html/d540139359de999b0f1c87d05b715be4d7d4bec771e1ae55153c5c7a%40%3Cdev.mina.apache.org%3E
- lists.apache.org/thread.html/e47597433b351d6e01a5d68d610b4ba195743def9730e49561e8cf3f%40%3Cdev.mina.apache.org%3E
- lists.debian.org/debian-lts-announce/2019/03/msg00030.html
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W3YVQ2BPTOVDCFDVNC2GGF5P5ISFG37G/
- security.gentoo.org/glsa/201903-16
- security.netapp.com/advisory/ntap-20190213-0001/
- sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt
- usn.ubuntu.com/3885-1/
- usn.ubuntu.com/3885-2/
- www.debian.org/security/2019/dsa-4387
- www.freebsd.org/security/advisories/FreeBSD-EN-19:10.scp.asc
Vendor advisories and official records. Exploit/PoC links are deliberately left out.