Netatalk before 3.1.12 is vulnerable to an out of bounds write in dsi_opensess.c.
Netatalk before 3.1.12 is vulnerable to an out of bounds write in dsi_opensess.c. This is due to lack of bounds checking on attacker controlled data. A remote unauthenticated attacker can leverage this vulnerability to achieve arbitrary code execution.
- Published
- Dec 20, 2018
- Updated
- Jun 16, 2026
- EPSS
- 86.5% · 100th percentile
- CWE
- CWE-787
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Action score
65
This week
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- CVSS
- 39 / 40 · 9.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 26 / 30 · 86.5%
CISA SSVC decision
- Exploitation
- proof of concept
- Automatable
- yes
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| netatalk | netatalk | cpe:2.3:a:netatalk:netatalk |
| synology | router manager | cpe:2.3:a:synology:router_manager |
| synology | skynas | cpe:2.3:a:synology:skynas |
| synology | diskstation manager | cpe:2.3:o:synology:diskstation_manager |
| synology | vs960hd firmware | cpe:2.3:o:synology:vs960hd_firmware |
| synology | vs960hd | cpe:2.3:h:synology:vs960hd |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- debian debian linux9.0
- netatalk netatalkbefore 3.1.12
- synology diskstation manager5.2 and later · before 5.2-5967-9
- synology diskstation manager6.1 and later · before 6.1.7-15284-3
- synology diskstation manager6.2 and later · before 6.2.1-23824-4
- synology router manager1.2 and later · before 1.2-7742-5
- synology skynasall versions
- synology vs960hd firmwareall versions
Versions reported by the vendor
Affected version ranges reported by the assigning authority (tenable). Independent of NVD's CPE analysis and usually ahead of it.
Netatalk Netatalk
- Before 3.1.12affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:13 | netatalk | before 2.2.6-2 | 2.2.6-2 |
| Debian:9 | netatalk | before 2.2.5-2+deb9u1 | 2.2.5-2+deb9u1 |
| SUSE:Linux Enterprise Desktop 12 SP3 | netatalk | before 3.1.0-3.3.1 | 3.1.0-3.3.1 |
| SUSE:Linux Enterprise Software Development Kit 11 SP4 | netatalk | before 2.0.3-249.23.3.1 | 2.0.3-249.23.3.1 |
Same product
netatalk: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-43634This vulnerability allows remote attackers to execute arbitrary code on affected installations of Netatalk.45Plan
- CVE-2022-23121This vulnerability allows remote attackers to execute arbitrary code on affected installations of Netatalk.42Plan
- CVE-2023-42464A Type Confusion vulnerability was found in the Spotlight RPC functions in afpd in Netatalk 3.1.x before 3.1.17.40Plan
- CVE-2022-23125This vulnerability allows remote attackers to execute arbitrary code on affected installations of Netatalk.40Plan
- CVE-2022-23124This vulnerability allows remote attackers to disclose sensitive information on affected installations of Netatalk.40Plan
- CVE-2022-23123This vulnerability allows remote attackers to disclose sensitive information on affected installations of Netatalk.40Plan
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 |
|---|---|---|
| debian:netatalk | 2.2.6-2 · Debian:13 | Package registry (OSV) |
| suse:netatalk | 2.0.3-249.23.3.1 · SUSE:Linux Enterprise Software Development Kit 11 SP4 | 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 ×3
- Proof-of-concept repository on GitHub ×1
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 | dos | 2018-12-21 |
| Exploit-DB entry | remote | 2018-12-21 |
| Exploit-DB entry | remote | 2019-04-08 |
| Proof-of-concept repository on GitHub | stars:0 | 2020-05-12 |
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.
- Published
- First PoCsame day
- TodaySep 30, 2026+2841 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.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-787 · Out-of-bounds WriteCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- netatalk.sourceforge.net/3.1/ReleaseNotes3.1.12.html
- www.securityfocus.com/bid/106301
- attachments.samba.org/attachment.cgi?id=14735
- github.com/tenable/poc/tree/master/netatalk/cve_2018_1160/
- www.debian.org/security/2018/dsa-4356
- www.synology.com/security/advisory/Synology_SA_18_62
Vendor advisories and official records. Exploit/PoC links are deliberately left out.