Symantec Messaging Gateway Buffer Overflow

published 2024-01-25 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-21108

cvss: 10.0; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 1.6%; EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits: 0; none known

A buffer overflow vulnerability exists in Symantec Messaging Gateway versions 9.5 and before. A remote, anonymous attacker can exploit this vulnerability to achieve remote code execution as root.

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: total
Assessed: 2 y ago (2024-09-05)

Exploit prediction

1.61% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	10.0	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
CNA	2.0	9.4	AV:N/AC:L/Au:N/C:C/I:C/A:N
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Symantec Messaging Gateway

Classification

Weakness

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-120 Buffer Copy without Checking Size of Input

References

blog.exodusintel.com /2024/01/25/symantec-messaging-gateway-stack-buffer-overflow-remote-code-execution/
third-party-advisory

Sources

CVE List CVE-2024-23614
NVD CVE-2024-23614

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary