Is CVE-2024-3120 actively exploited?

No active exploitation of CVE-2024-3120 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2024-3120 be exploited remotely?

Yes. CVE-2024-3120 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2024-3120?

CVE-2024-3120 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2024-3120

CWE-120Published: April 10, 2024· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

A stack-buffer overflow vulnerability exists in all versions of sngrep since v1.4.1. The flaw is due to inadequate bounds checking when copying 'Content-Length' and 'Warning' headers into fixed-size buffers in the sip_validate_packet and sip_parse_extra_headers functions within src/sip.c. This vulnerability allows remote attackers to execute arbitrary code or cause a denial of service (DoS) via crafted SIP messages.

NVD Source

Risk Analysis

This vulnerability is a stack-buffer overflow in sngrep caused by insufficient bounds checking when processing SIP headers. Given the critical CVSS score of 9.8, this flaw allows remote, unauthenticated attackers to trigger arbitrary code execution or a denial of service.

There is no known public exploit for this vulnerability, and it is not currently listed in CISA KEV. It is remotely exploitable with low attack complexity.

Recommended Action

Users should update sngrep to a version that includes the necessary bounds checking fixes for sip_validate_packet and sip_parse_extra_headers.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2024-3120 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.