7.5

CVE-2016-7444: gnu gnutls

Modified
AliasesALPINE-CVE-2016-7444MGASA-2016-0326UBUNTU-CVE-2016-7444
Published 27-09-2016Last modified 06-08-2024

Vulnerability summary

CVE-2016-7444 is a high (CVSS 7.5) vulnerability in gnu gnutls. EPSS estimates a 2.44% chance of exploitation in the next 30 days, higher than 84.3% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 2% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
2.44%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 3 · Related 2
RHSA-2017:2292SUSE-SU-2017:0348-1USN-3183-1

Timeline

  1. 27-09-2016
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The gnutls_ocsp_resp_check_crt function in lib/x509/ocsp.c in GnuTLS before 3.4.15 and 3.5.x before 3.5.4 does not verify the serial length of an OCSP response, which might allow remote attackers to bypass an intended certificate validation mechanism via vectors involving trailing bytes left by gnutls_malloc.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

2.44%

Chance of exploitation in the next 30 days

Percentile

84%

Versus all other CVEs

30-day change

No change 0.00 pp

From 2.44% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Alpine1 product
  • gnutls< 3.4.5-r1
Debian1 product
  • gnutls28< 3.5.3-4
Gnu1 product
  • gnutls≤ 3.4.14 | 3.5.0 | 3.5.1 | 3.5.2 | 3.5.3
Mageia1 product
  • gnutls< 3.2.21-1.2.mga5
Ubuntu1 product
  • gnutls28< 3.4.10-4ubuntu1.2

5 vendors · 5 products

References

19 links
Show all 19 references