CVE-2023-22741: Sofia-SIP is an open-source SIP User-Agent library, compliant with the IETF RFC3261 specification

Q: How do I fix CVE-2023-22741?

sofia-sip: upgrade to 1.13.11. Exact commands for each OS are on this page.

Q: Is CVE-2023-22741 being exploited?

CVE-2023-22741 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-22741 affect?

CVE-2023-22741 affects sofia-sip. Severity is critical (CVSS 9.8). Sofia-SIP is an open-source SIP User-Agent library, compliant with the IETF RFC3261 specification. In affected versions Sofia-SIP **lacks both message length and attributes length checks** when it handles STUN packets, leading to controllab

Q: How urgent is CVE-2023-22741?

Priority 65/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2023-22741 is a critical-severity flaw (CVSS 9.8) affecting sofia-sip. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Sofia-SIP is an open-source SIP User-Agent library, compliant with the IETF RFC3261 specification. In affected versions Sofia-SIP **lacks both message length and attributes length checks** when it handles STUN packets, leading to controllable heap-over-flow. For example, in stun_parse_attribute(), after we get the attribute's type and length value, the length will be used directly to copy from the heap, regardless of the message's left size. Sinc

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.4% (top 16%)
CISA exploited list	No
Weakness	CWE-120, CWE-787
Published	2023-01-19
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: signalwire

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-01-19 22:15 UTCPublished CVE record published
2026-06-17 05:36 UTCUpdated Record last modified

signalwire sofia-sip UPGRADE

Affected: < 1.13.11

Fixed in: 1.13.11

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy sofia-sip || rpm -q sofia-sip || sofia-sip --version

2. UPGRADE to 1.13.11 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade sofia-sip

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade sofia-sip

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-22741?

sofia-sip: upgrade to 1.13.11. Exact commands for each OS are on this page.

Is CVE-2023-22741 being exploited?

CVE-2023-22741 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-22741 affect?

CVE-2023-22741 affects sofia-sip. Severity is critical (CVSS 9.8). Sofia-SIP is an open-source SIP User-Agent library, compliant with the IETF RFC3261 specification. In affected versions Sofia-SIP **lacks both message length and attributes length checks** when it handles STUN packets, leading to controllab

How urgent is CVE-2023-22741?

Priority 65/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2023-32307 HIGH 7.5 UPGRADE MITIGATE Sofia-SIP is an open-source SIP User-Agent library, compliant with the IETF RFC3261 specification. Referring t
CVE-2022-31003 CRITICAL 9.1 UPGRADE MITIGATE Sofia-SIP is an open-source Session Initiation Protocol (SIP) User-Agent library
CVE-2022-31002 HIGH 7.5 UPGRADE MITIGATE Sofia-SIP is an open-source Session Initiation Protocol (SIP) User-Agent library
CVE-2022-31001 HIGH 7.5 UPGRADE MITIGATE Sofia-SIP is an open-source Session Initiation Protocol (SIP) User-Agent library

References

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