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Low 3.7Published May 20, 2015

CVE-2015-4000The 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 c…

Updated under an hour ago ()

Does this affect you?

It affects openssl and 24 other products. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 99.86%, higher than 100% of scored CVEs. That is high: schedule it on your emergency patch path.

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.

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CVSS
3.7 LOW (v3.1, NVD)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE)
CWE-310, CWE-295
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
99.86% (percentile 100)
Assigned by
Not given
NVD analysis
Modified
Record last updated
Jun 16, 2026
First seen by InfoSec Signals
Nov 1, 2026

Affected products

Affected products
openssl openssl
openssl:openssl
from 1.0.1 through 1.0.1m; from 1.0.2 through 1.0.2a; through 1.0.1m
NVD
canonical ubuntu_linux
canonical:ubuntu_linux
12.04; 14.04; 14.10; 15.04
NVD
hp hp-ux
hp:hp-ux
b.11.31
NVD
ibm content_manager
ibm:content_manager
8.5
NVD
oracle jrockit
oracle:jrockit
r28.3.6
NVD
debian debian_linux
debian:debian_linux
7.0; 8.0
NVD
oracle jdk
oracle:jdk
1.6.0; 1.7.0; 1.7.0; 1.8.0; 1.8.0
NVD
oracle jre
oracle:jre
1.6.0; 1.7.0; 1.7.0; 1.8.0; 1.8.0
NVD
suse linux_enterprise_desktop
suse:linux_enterprise_desktop
12
NVD
suse linux_enterprise_server
suse:linux_enterprise_server
11.0
NVD

References

References

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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