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Back to active CVEs
High · CVSS 8.8CVE-2026-58096

ppp(8): missing length validation in LcpDecodeConfig()CVE-2026-58096

Answer in brief

CVE-2026-58096 records a High severity (CVSS 8.8) vulnerability in ppp(8): missing length validation in LcpDecodeConfig(). The current sources do not mark it as known exploited. The current feed maps FreeBSD/FreeBSD (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

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

Published Aug 26, 2026Updated Sep 10, 2026Source checked Oct 10, 2026First seen by HOL Aug 26, 2026Material review Sep 10, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.8
Exploitation
Not marked as known exploited
Affected software
23 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 8.8. 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 FreeBSD/FreeBSD (generic). Check affected ranges and fixed versions before updating.

Affected products and reported versions
ProductAffected versionsFixed versions
cpe:2.3:o:freebsd:freebsd:14.4:p1:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:14.4:p2:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:14.4:p3:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:14.4:p4:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:14.4:p5:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:14.4:p6:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:14.4:p7:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:14.4:p8:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:15.0:p1:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:15.0:p10:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:15.0:p11:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:15.0:p12:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:15.0:p2:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:15.0:p3:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:15.0:p4:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:15.0:p5:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:15.0:p6:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:15.0:p7:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:15.0:p8:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:15.0:p9:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:15.1:p1:*:*:*:*:*:*Not reportedNot reported
cpe:2.3:o:freebsd:freebsd:15.1:p2:*:*:*:*:*:*Not reportedNot reported
Mapped affected packages and fixed versions
PackageAffected rangeFixed version
FreeBSD/FreeBSDgeneric>=15.1-RELEASE <p3 || >=15.0-RELEASE <p13 || >=14.4-RELEASE <p9p3, p13, p9

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for FreeBSD/FreeBSD.
  2. 2Review the reported fix. Update FreeBSD/FreeBSD to p3 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Aug 26, 2026

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

  2. Source modified

    Sep 10, 2026

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

  3. First seen by HOL

    Aug 26, 2026

Sources and claim methodology

  • Source referencesecurity.freebsd.org
Upstream source description

LcpDecodeConfig() did not validate the length of received endpoint discriminator options against the minimum required by RFC 1717. Undersized options would trigger an out-of-bounds write. A malicious PPP peer can exploit CVE-2026-58095 and CVE-2026-58096 to crash ppp(8) or potentially execute arbitrary code as root.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Apache DataSketches: datasketches-cpp: Out-of-bounds read and write in the CPC sketch deserialization allows memory corruption via a crafted sketchAlso CWE-787
  • ExtUtils::Typemaps::STL::Vector versions before 1.05 for Perl allocate a 32 GiB array on an empty listSame generic ecosystem
  • FunnelKit <= 3.16.0.5 - Unauthenticated Stored Cross-Site Scripting via Order Fields (shipping/billing)Same generic ecosystem
  • WPAdverts <= 2.3.4 - Unauthenticated Stored Cross-Site Scripting via 'adverts_location' ParameterSame generic ecosystem
  • Molongui Authorship <= 5.2.12 - Unauthenticated Stored DOM-Based Cross-Site Scripting via Comment href AttributeSame generic ecosystem
  • WPForms <= 2.0.2.1 - Reflected Cross-Site Scripting via 'query_var' Smart Tag in iframe srcdoc AttributeSame generic ecosystem

Record context

Vulnerability class
Memory Corruption
EPSS
Not reported
CWE IDs
CWE-130, CWE-787
Source
CVE List V5
Source checked
Oct 10, 2026
References
1 linked source
Open source record