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Public proof of conceptFix available

CVE-2026-110658

Sofia-SIP through 1.13.18 Heap Out-of-Bounds Read via msg_multipart_parse

A public proof of concept exists; no exploitation attested.

  • Published2026-10-14
  • WeaknessCWE-125

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Sofia-SIP through 1.13.18 contains a heap out-of-bounds read vulnerability in msg_multipart_parse() that allows unauthenticated remote attackers to crash the process by sending oversized MIME boundaries. Attackers can send an INVITE with a multipart Content-Type whose boundary exceeds the body length, causing memcmp to read past the heap buffer and crash the process.

Timeline

dates in UTC
  1. 2026-10-1415:01CVE publishedCNA

Versions per branch

Products declared by the CNA1 product

As VulnCheck, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-10-14

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • sofia-sipUbuntu:Pro:18.04:LTSall versions · no fixed version listed
  • sofia-sipUbuntu:Pro:16.04:LTSall versions · no fixed version listed
  • sofia-sipUbuntu:26.10all versions · no fixed version listed
  • sofia-sipUbuntu:26.04:LTSall versions · no fixed version listed
  • sofia-sipUbuntu:24.04:LTSall versions · no fixed version listed
  • sofia-sipUbuntu:22.04:LTSall versions · no fixed version listed
  • sofia-sipUbuntu:20.04:LTSall versions · no fixed version listed
  • sofia-sipopenSUSE:Tumbleweedall versions · fixed in 1.13.19-1.1

3 more package ranges on OSV.dev

Vendor advisories

  • CVE-2026-110658 Red Hat Product Security

    sofia-sip: sofia-sip: Denial of Service via oversized MIME boundary

Full record on NVD

Fix

No fix published by the sources we read yet. NVD record

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS 4.0 vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
2026-10-14
Last Modified
2026-10-15
NVD status
Deferred
GitHub Advisory
GHSA-9vj3-xq9j-5vq6

Frequently asked questions

What is CVE-2026-110658?

Sofia-SIP through 1.13.18 contains a heap out-of-bounds read vulnerability in msg_multipart_parse() that allows unauthenticated remote attackers to crash the process by sending oversized MIME boundaries. Attackers can send an INVITE with a multipart Content-Type whose boundary exceeds the body length, causing memcmp to read past the heap buffer and crash the process.

Is CVE-2026-110658 actively exploited?

A proof-of-concept exploit exists for CVE-2026-110658, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-110658?

CVE-2026-110658 has a CVSS v3 base score of 5.3 (MEDIUM severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

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