Vulnerability · Published Oct 14, 2026 · Assigned by VulnCheck
CVE-2026-110658Sofia-SIP through 1.13.18 Heap Out-of-Bounds Read via msg_multipart_parse
Medium 5.3
In plain English
A medium-severity out-of-bounds read in sofia-sip from freeswitch. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).
Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.7%top 47.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | sofia-sip | no fix listed | DEBIAN-CVE-2026-110658 |
| Debian:13 | sofia-sip | no fix listed | DEBIAN-CVE-2026-110658 |
| Debian:14 | sofia-sip | no fix listed | DEBIAN-CVE-2026-110658 |
| Ubuntu:22.04:LTS | sofia-sip | no fix listed | UBUNTU-CVE-2026-110658 |
| Ubuntu:24.04:LTS | sofia-sip | no fix listed | UBUNTU-CVE-2026-110658 |
| Ubuntu:26.04:LTS | sofia-sip | no fix listed | UBUNTU-CVE-2026-110658 |
| Ubuntu:26.10 | sofia-sip | no fix listed | UBUNTU-CVE-2026-110658 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| freeswitch | sofia-sip | 0 – through 1.13.18 |
Weakness: CWE-125 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
References
- https://hackmd.io/@haind-pwn/sofia-sip-multipart-oob-read technical-description, exploit
- https://github.com/freeswitch/sofia-sip/blob/ad36ac8f755308e8b87f98a505e83d4e408e5cc3/libsofia-sip-ua/msg/msg_mime.c#L404 technical-description
- https://github.com/freeswitch/sofia-sip product
- VulnCheck Advisory: Sofia-SIP through 1.13.18 Heap Out-of-Bounds Read via msg_multipart_parse third-party-advisory