The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server but not on a client, does not properly convey a DHE_E
The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server but not on a client, does not properly convey a DHE_EXPORT choice, which allows man-in-the-middle attackers to conduct cipher-downgrade attacks by rewriting a ClientHello with DHE replaced by DHE_EXPORT and then rewriting a ServerHello with DHE_EXPORT replaced by DHE, aka the "Logjam" issue.
- Published
- May 20, 2015
- Updated
- Jun 16, 2026
- EPSS
- 99.9% · 100th percentile
- CWE
- CWE-310
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Report tools
Action score
44
Plan
Add it to your regular patch cycle.
- CVSS
- 14 / 40 · 3.7 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 30 / 30 · 99.9%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| openssl | openssl | cpe:2.3:a:openssl:openssl |
| canonical | ubuntu linux | cpe:2.3:o:canonical:ubuntu_linux |
| hp | hp-ux | cpe:2.3:o:hp:hp-ux |
| ibm | content manager | cpe:2.3:a:ibm:content_manager |
| oracle | jrockit | cpe:2.3:a:oracle:jrockit |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| oracle | jdk | cpe:2.3:a:oracle:jdk |
| oracle | jre | cpe:2.3:a:oracle:jre |
| suse | linux enterprise desktop | cpe:2.3:o:suse:linux_enterprise_desktop |
| suse | linux enterprise server | cpe:2.3:o:suse:linux_enterprise_server |
| suse | linux enterprise software development kit | cpe:2.3:o:suse:linux_enterprise_software_development_kit |
| suse | suse linux enterprise server | cpe:2.3:o:suse:suse_linux_enterprise_server |
and 13 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- oracle jdk1.6.0
- oracle jdk1.7.0
- oracle jdk1.8.0
- oracle jre1.6.0
- oracle jre1.7.0
- oracle jre1.8.0
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | nss | before 2:3.19.1-1 | 2:3.19.1-1 |
| Debian:12 | openssl | before 1.0.2b-1 | 1.0.2b-1 |
| Debian:6.0 | openjdk-6 | before 6b36-1.13.8-1~deb6u1 | 6b36-1.13.8-1~deb6u1 |
| Debian:6.0 | openssl | before 0.9.8o-4squeeze21 | 0.9.8o-4squeeze21 |
| Debian:7 | icedove | before 31.8.0-1~deb7u1 | 31.8.0-1~deb7u1 |
| Debian:7 | iceweasel | before 31.8.0esr-1~deb7u1 | 31.8.0esr-1~deb7u1 |
| Debian:7 | nss | before 2:3.14.5-1+deb7u7 | 2:3.14.5-1+deb7u7 |
| Debian:7 | openjdk-6 | before 6b36-1.13.8-1~deb7u1 | 6b36-1.13.8-1~deb7u1 |
| Debian:7 | openjdk-7 | before 7u79-2.5.6-1~deb7u1 | 7u79-2.5.6-1~deb7u1 |
| Debian:7 | openssl | before 1.0.1e-2+deb7u17 | 1.0.1e-2+deb7u17 |
| Debian:8 | icedove | before 31.8.0-1~deb8u1 | 31.8.0-1~deb8u1 |
| Debian:8 | iceweasel | before 31.8.0esr-1~deb8u1 | 31.8.0esr-1~deb8u1 |
| Debian:8 | nss | before 2:3.26-1+debu8u1 | 2:3.26-1+debu8u1 |
| Debian:8 | openjdk-7 | before 7u79-2.5.6-1~deb8u1 | 7u79-2.5.6-1~deb8u1 |
| Debian:8 | openssl | before 1.0.1k-3+deb8u1 | 1.0.1k-3+deb8u1 |
| openSUSE:Tumbleweed | java-1_8_0-openjdk | before 1.8.0.111-1.1 | 1.8.0.111-1.1 |
| openSUSE:Tumbleweed | mozilla-nss | before 3.26.2-1.1 | 3.26.2-1.1 |
| openSUSE:Tumbleweed | socat | before 1.7.3.1-2.7 | 1.7.3.1-2.7 |
| Red Hat:enterprise_linux:5::client | java-1.6.0-openjdk | before 1:1.6.0.36-1.13.8.1.el5_11 | 1:1.6.0.36-1.13.8.1.el5_11 |
| Red Hat:enterprise_linux:5::client | java-1.6.0-openjdk-debuginfo | before 1:1.6.0.36-1.13.8.1.el5_11 | 1:1.6.0.36-1.13.8.1.el5_11 |
| Red Hat:enterprise_linux:5::client | java-1.6.0-openjdk-demo | before 1:1.6.0.36-1.13.8.1.el5_11 | 1:1.6.0.36-1.13.8.1.el5_11 |
| Red Hat:enterprise_linux:5::client | java-1.6.0-openjdk-devel | before 1:1.6.0.36-1.13.8.1.el5_11 | 1:1.6.0.36-1.13.8.1.el5_11 |
| Red Hat:enterprise_linux:5::client | java-1.6.0-openjdk-javadoc | before 1:1.6.0.36-1.13.8.1.el5_11 | 1:1.6.0.36-1.13.8.1.el5_11 |
| Red Hat:enterprise_linux:5::client | java-1.6.0-openjdk-src | before 1:1.6.0.36-1.13.8.1.el5_11 | 1:1.6.0.36-1.13.8.1.el5_11 |
+96
Same product
openssl: all recordsOther highest-scoring records for the same primary product.
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- CVE-2021-3711SM2 Decryption Buffer Overflow65This week
- CVE-2003-0545Double free vulnerability in OpenSSL 0.9.7 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code 65This week
- CVE-2016-2108The ASN.1 implementation in OpenSSL before 1.0.1o and 1.0.2 before 1.0.2c allows remote attackers to execute arbitrary code or cause a denia62This week
- CVE-2016-6309statem/statem.c in OpenSSL 1.1.0a does not consider memory-block movement after a realloc call, which allows remote attackers to cause a den60This week
- CVE-2022-3786X.509 Email Address Variable Length Buffer Overflow58Plan
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:icedove | 31.8.0-1~deb7u1 · Debian:7 | Package registry (OSV) |
| debian:iceweasel | 31.8.0esr-1~deb7u1 · Debian:7 | Package registry (OSV) |
| debian:nss | 2:3.19.1-1 · Debian:12 | Package registry (OSV) |
| debian:openjdk-6 | 6b36-1.13.8-1~deb6u1 · Debian:6.0 | Package registry (OSV) |
| debian:openjdk-7 | 7u79-2.5.6-1~deb7u1 · Debian:7 | Package registry (OSV) |
| debian:openssl | 1.0.2b-1 · Debian:12 | Package registry (OSV) |
| opensuse:java-1_8_0-openjdk | 1.8.0.392-150000.3.85.1 · openSUSE:Leap 15.4 | Package registry (OSV) |
| opensuse:mozilla-nss | 3.26.2-1.1 · openSUSE:Tumbleweed | Package registry (OSV) |
| opensuse:socat | 1.7.3.1-2.7 · openSUSE:Tumbleweed | Package registry (OSV) |
| red hat:nss | 0:3.19.1-3.el6_6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:nss-debuginfo | 0:3.19.1-3.el6_6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:nss-sysinit | 0:3.19.1-3.el6_6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:nss-tools | 0:3.19.1-3.el6_6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:nss-util | 0:3.19.1-1.el6_6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:nss-util-debuginfo | 0:3.19.1-1.el6_6 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:openssl | 0:1.0.1e-30.el6_6.9 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:openssl-debuginfo | 0:1.0.1e-30.el6_6.9 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:openssl-devel | 0:1.0.1e-30.el6_6.9 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:openssl-libs | 1:1.0.1e-42.el7_1.6 · Red Hat:enterprise_linux:7::client | Package registry (OSV) |
| red hat:openssl-perl | 0:1.0.1e-30.el6_6.9 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:openssl-static | 0:1.0.1e-30.el6_6.9 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| suse:compat-openssl098 | 0.9.8j-78.1 · SUSE:Linux Enterprise Desktop 12 | Package registry (OSV) |
| suse:firefox-gcc47 | 4.7.2_20130108-0.37.2 · SUSE:Linux Enterprise Server 11 SP1-LTSS | Package registry (OSV) |
| suse:java-1_6_0-ibm | 1.6.0_sr16.7-22.2 · SUSE:Linux Enterprise Module for Legacy 12 | Package registry (OSV) |
| suse:java-1_7_0-ibm | 1.7.0_sr9.10-9.1 · SUSE:Linux Enterprise Software Development Kit 11 SP3 | Package registry (OSV) |
| suse:java-1_7_0-openjdk | 1.7.0.85-18.2 · SUSE:Linux Enterprise Desktop 12 | Package registry (OSV) |
| suse:java-1_7_1-ibm | 1.7.1_sr3.10-3.1 · SUSE:Linux Enterprise Software Development Kit 11 SP4 | Package registry (OSV) |
| suse:java-1_8_0-openjdk | 1.8.0.392-150000.3.85.1 · SUSE:Linux Enterprise Module for Legacy 15 SP4 | Package registry (OSV) |
| suse:mozilla-nspr | 4.10.8-0.5.1 · SUSE:Linux Enterprise Server 11 SP4 | Package registry (OSV) |
| suse:mozilla-nss | 3.19.2_CKBI_1.98-0.10.1 · SUSE:Linux Enterprise Server 11 SP4 | Package registry (OSV) |
+4
Exploit status
Weaponized
A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.
Evidence
- Metasploit module ×1
- 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 |
|---|---|---|
| Metasploit module | auxiliary/scanner/ssl/ssl_versionSSL/TLS Version Detectionauxiliary | 2014-10-14 |
| Proof-of-concept repository on GitHub | stars:6 | 2021-04-24 |
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.
- Metasploit-219 d
- Published
- First PoC+2165 d
- TodaySep 30, 2026+4151 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
The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.
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
- low · 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
- Low
- Availability impact
- None
Weakness class (CWE)
CWE-310 · Cryptographic IssuesCVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
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
- aix.software.ibm.com/aix/efixes/security/sendmail_advisory2.asc
- fortiguard.com/advisory/2015-07-09-cve-2015-1793-openssl-alternative-chains-certificate-forgery
- ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2015-008.txt.asc
- h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c04876402
- h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c04949778
- kb.juniper.net/InfoCenter/index?page=content&id=JSA10681
- kb.juniper.net/InfoCenter/index?page=content&id=JSA10727
- lists.apple.com/archives/security-announce/2015/Jun/msg00001.html
- lists.apple.com/archives/security-announce/2015/Jun/msg00002.html
- lists.fedoraproject.org/pipermail/package-announce/2015-June/159314.html
- lists.fedoraproject.org/pipermail/package-announce/2015-June/159351.html
- lists.fedoraproject.org/pipermail/package-announce/2015-June/160117.html
- lists.opensuse.org/opensuse-security-announce/2015-06/msg00023.html
- lists.opensuse.org/opensuse-security-announce/2015-06/msg00024.html
- lists.opensuse.org/opensuse-security-announce/2015-06/msg00026.html
- lists.opensuse.org/opensuse-security-announce/2015-07/msg00001.html
- lists.opensuse.org/opensuse-security-announce/2015-07/msg00003.html
- lists.opensuse.org/opensuse-security-announce/2015-07/msg00004.html
- lists.opensuse.org/opensuse-security-announce/2015-07/msg00005.html
- lists.opensuse.org/opensuse-security-announce/2015-07/msg00006.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.