CVE-2018-25285

MEDIUM 5.5

Fathom 2.4 Denial of Service via Authorization Code Buffer Overflow

CVSS Score

5.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-120
Vendor	fathom
Product	fathom
Published	Apr 26, 2026

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CVSS v3 Breakdown

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

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

Fathom / Fathom

2.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/45294 fathom.concord.org: https://fathom.concord.org/ fathom.concord.org: https://fathom.concord.org/download/ vulncheck.com: https://www.vulncheck.com/advisories/fathom-denial-of-service-via-authorization-code-buffer-overflow

Credits

Gionathan "John" Reale