Skip to main content

CVE detail

CVE-2026-5123

A weakness has been identified in osrg GoBGP up to 4.3.0. This impacts the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go. Executing a manipulation of the argument data[1] can lead to off-by-one. The attack may be launched remotely. Attacks of this nature are highly complex. The exploitability is said to be difficult. This patch is called 67c059413470df64bc20801c46f64058e88f800f. A patch should be applied to remediate this issue.

CVSS 6.3 · MediumBuzz score 26.0

Buzz score

Why this CVE is surfacing

Buzz score total 26.0

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 19.5 · diversity 6.5 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
19.5
6 evidence mentions in the snapshot
Diversity score
6.5
2 sources across 1 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
0
within the 30d window
Peak daily
0
highest bucket

Evidence

Source links by recency

Newest mentions first
6 source links · newest first

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars
No public PoC repositories have been matched yet.

Related records

Similar CVEs

6 related CVEs with shared weakness or product evidence
  • CVE-2026-2703

    A weakness has been identified in xlnt-community xlnt up to 1.6.1. Impacted is the function xlnt::detail::decode_base64 of the file source/detail/cryptography/base64.cpp of the co…

    CVSS 1.9 · Low
    7 mentions
  • CVE-2026-7736

    A vulnerability was determined in osrg GoBGP up to 4.3.0. Affected by this vulnerability is the function parseRibEntry of the file pkg/packet/mrt/mrt.go. Executing a manipulation…

    CVSS 6.9 · Medium
    6 mentions
  • 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…

    CVSS 6.8 · Medium
  • CVE-2025-43971

    An issue was discovered in GoBGP before 3.35.0. pkg/packet/bgp/bgp.go allows attackers to cause a panic via a zero value for softwareVersionLen.

    CVSS 8.6 · High
  • CVE-2026-14899

    The code to parse MIME headers for display when forwarding a message (if the setting to view all headers was enabled) had an off-by-one error, allowing a single byte to be read fr…

    CVSS 7.5 · High
    3 mentions
  • CVE-2026-44687

    In NLnet Labs Unbound 1.13.2 up to and including 1.25.1, stub or forward zones where the name is below an intermediate labed below a DNSSEC signed zone could be shadowed by the in…

    CVSS 3.7 · Low
    2 mentions