CVE-2018-25285

MEDIUM

Fathom 2.4 Denial of Service via Authorization Code Buffer Overflow

Title source: cna

Description

Fathom 2.4 contains a buffer overflow vulnerability in the Authorization Code field that allows local attackers to crash the application by submitting an oversized input string. Attackers can paste a 6000-byte payload into the Authorization Code field and click Activate to trigger a denial of service condition.

Exploits (1)

exploitdb WORKING POC VERIFIED

by Gionathan Reale · pythondoswindows_x86

https://www.exploit-db.com/exploits/45294

View Code ZIP pw:eip

References (4)

[Exploit] https://www.exploit-db.com/exploits/45294

[Product] https://fathom.concord.org/

[Product] https://fathom.concord.org/download/

[Third Party Advisory] https://www.vulncheck.com/advisories/fathom-denial-of-service-via-authorization-code-buffer-overflow

Scores

CVSS v3 5.5

EPSS 0.0001

EPSS Percentile 1.6%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation poc

Automatable no

Technical Impact partial

Details

CWE

CWE-120

Status published

Products (1)

Fathom/Fathom 2.4

Published Apr 26, 2026

Tracked Since Apr 26, 2026