What is the CVSS score of CVE-2025-45797?

CVE-2025-45797 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.5%.

Which versions of A950rg Firmware are affected by CVE-2025-45797?

Organizations using TOTOlink A950RG V4.1.2cu.5204_B20210112 face critical risk from CVE-2025-45797, a out-of-bounds write vulnerability rated CVSS 9.8.

Is there a public PoC exploit available for CVE-2025-45797?

Yes, a public proof-of-concept exploit is available for CVE-2025-45797. Prioritise patching immediately. EPSS: 0.5%.

How to fix or mitigate CVE-2025-45797?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. If patching is delayed, consider network segmentation to limit exposure.

A950rg Firmware CVE-2025-45797

CRITICAL

Out-of-bounds Write (CWE-787)

2025-05-08 cve@mitre.org

Memory Corruption Buffer Overflow A950rg Firmware TOTOLINK

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 28, 2026 - 18:40 vuln.today

PoC Detected

May 16, 2025 - 15:36 vuln.today

Public exploit code

CVE Published

May 08, 2025 - 20:15 nvd

CRITICAL 9.8

DescriptionCVE.org

TOTOlink A950RG V4.1.2cu.5204_B20210112 contains a buffer overflow vulnerability. The vulnerability arises from the improper input validation of the NoticeUrl parameter in the setNoticeCfg interface of /lib/cste_modules/system.so.

AnalysisAI

TOTOlink A950RG V4.1.2cu.5204_B20210112 contains a buffer overflow vulnerability. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. TOTOlink A950RG V4.1.2cu.5204_B20210112 contains a buffer overflow vulnerability. The vulnerability arises from the improper input validation of the NoticeUrl parameter in the setNoticeCfg interface of /lib/cste_modules/system.so. Affected products include: Totolink A950Rg Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).