CVE-2025-43973

MEDIUM
Published Apr 21, 2025 Modified May 8, 2025 CWE-193

Description

An issue was discovered in GoBGP before 3.35.0. pkg/packet/rtr/rtr.go does not verify that the input length corresponds to a situation in which all bytes are available for an RTR message.

Is your site exposed to CVE-2025-43973?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

6.8
MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

Weakness Type (CWE)

CWE-193 CWE-193

Affected Products

Vendor Product
osrg gobgp

References

Frequently Asked Questions

What is CVE-2025-43973? +
An issue was discovered in GoBGP before 3.35.0. pkg/packet/rtr/rtr.go does not verify that the input length corresponds to a situation in which all bytes are available for an RTR message. It has a CVSS v3.1 base score of 6.8 (MEDIUM).
How severe is CVE-2025-43973? +
CVE-2025-43973 has a CVSS v3.1 score of 6.8 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2025-43973? +
CVE-2025-43973 affects products from osrg, specifically: gobgp. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2025-43973? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2026-52804

Gogs is an open source self-hosted Git service. Prior to 0.14.3, a repository admin collaborator can escalate their privileges to …
CVE-2026-8357

LibreOffice Calc compiles cell formulas when opening a spreadsheet. A heap buffer overflow existed when compiling a very long formula …
CVE-2026-11771

OpenVPN version 2.1.0 through 2.6.20 and 2.7_alpha1 through 2.7.4 allows attackers via an off-by-one buffer write in the NTLM proxy …
CVE-2024-10442 10.0

Off-by-one error vulnerability in the transmission component in Synology Replication Service before 1.0.12-0066, 1.2.2-0353 and 1.3.0-0423 and Synology Unified Controller …
CVE-2024-38441 9.8

Netatalk before 3.2.1 has an off-by-one error and resultant heap-based buffer overflow because of setting ibuf[len] to '\0' in FPMapName …
CVE-2026-48689 9.8

FastNetMon Community Edition through 1.2.9 contains an off-by-one heap-based buffer overflow in the dynamic_binary_buffer_t class (src/dynamic_binary_buffer.hpp). Five methods (append_dynamic_buffer, append_data_as_pointer, …

Don't wait for an exploit

Scan your website for vulnerabilities like CVE-2025-43973 — free, no signup required.