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Back to active CVEs
Medium · CVSS 5.0CVE-2024-28835

Gnutls: potential crash during chain building/verificationCVE-2024-28835

Answer in brief

CVE-2024-28835 records a Medium severity (CVSS 5.0) vulnerability in Gnutls: potential crash during chain building/verification. The current sources do not mark it as known exploited. The current feed maps gnutls (generic), Red Hat/gnutls (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Mar 21, 2024Updated Oct 22, 2026Source checked Nov 3, 2026First seen by HOL Jul 3, 2026Material review Oct 22, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 5.0
Exploitation
Not marked as known exploited
Affected software
5 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 5.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps gnutls (generic), Red Hat/gnutls (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
gnutlsgeneric3.8.3Not reported
Red Hat/gnutlsgeneric*Not reported
Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric>=V3.1.0 <V3.1.5V3.1.5
Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric>=V3.1.0 <V3.1.5V3.1.5
Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric>=V3.1.0 <V3.1.5V3.1.5

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for gnutls, Red Hat/gnutls, Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP.
  2. 2Review the reported fix. Source-reported workaround: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Evidence timeline and material changes

  1. Published upstream

    Mar 21, 2024

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 22, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Jul 3, 2026

Sources and claim methodology

  • Source referenceaccess.redhat.com
  • Source referenceaccess.redhat.com
  • Source referenceaccess.redhat.com
  • Source referenceaccess.redhat.com
  • Source referencebugzilla.redhat.com
  • Source referencecert-portal.siemens.com
  • Source referencelists.debian.org
  • Source referencelists.gnupg.org
  • Source referencesecurity.netapp.com
  • Source referenceopenwall.com
  • Source referenceopenwall.com
Upstream source description

A flaw has been discovered in GnuTLS where an application crash can be induced when attempting to verify a specially crafted .pem bundle using the "certtool --verify-chain" command.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-248
Source
CVE List V5
Source checked
Nov 3, 2026
References
11 linked sources
Open source record