🛡️ CVE-2025-25741 — dir-853-firmware

🟡 CVSS 5.4 — Medium ⚠️ Exploit Public CWE-121 NVD
5.4
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

D-Link DIR-853 A1 FW1.20B07 was discovered to contain a stack-based buffer overflow vulnerability via the IPv6_PppoePassword parameter in the SetIPv6PppoeSettings module.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability none.

Weakness class

CVE-2025-25741 is classified as CWE-121: Stack-based Buffer Overflow. An oversized write to a stack buffer overwrites saved state such as return addresses, which can redirect execution.

Affected software

CVE-2025-25741 is recorded against 1 package.

  • dir-853-firmware

Timeline and source

Published on 12 February 2025 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. Record sourced from NVD.

References

dear-sunshine-ba5.notion.site

Details

Severity MEDIUM
CVSS Score 5.4
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CWE CWE-121
Public Exploit ⚠️ Yes
Source NVD
Published 2025-02-12
Updated 2026-08-11
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
dir-853-firmware — —

Similar Threats

Exploit Protection

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CVE-2025-25741 carries CVSS 5.4 Medium rating and a public exploit already exists. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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