HOMEVULNERABILITIESCVE-2026-7736
HIGH

CVE-2026-7736

CWE-189Published: May 4, 2026· Updated: May 6, 2026

7.5
CVSS v3.1
EPSS:0.05%probability of exploitation in 30 daysPercentile:14.1th

Official Description

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 can lead to integer underflow. It is possible to launch the attack remotely. Upgrading to version 4.4.0 addresses this issue. This patch is called 76d911046344a3923cbe573364197aa081944592. It is suggested to upgrade the affected component.

NVD Source

Technical Analysis

CVE-2026-7736 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

osrg1 product
gobgp
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/osrg/gobgp/commit/76d911046344a3923cbe573364197aa081944592
PATCHhttps://github.com/osrg/gobgp/releases/tag/v4.4.0
ADVISORYhttps://vuldb.com/submit/807604
ADVISORYhttps://vuldb.com/vuln/360911

All References (6)

→
https://github.com/osrg/gobgp/Product
→
https://github.com/osrg/gobgp/commit/76d911046344a3923cbe573364197aa081944592Patch
→
https://github.com/osrg/gobgp/releases/tag/v4.4.0Patch · Product
→
https://vuldb.com/submit/807604Third Party Advisory · VDB Entry
→
https://vuldb.com/vuln/360911Third Party Advisory · VDB Entry
→
https://vuldb.com/vuln/360911/ctiPermissions Required · VDB Entry

Quick Facts

CVE IDCVE-2026-7736
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-189
CISA KEVNo
EPSS (30d)0.05%
Affected1 vendor
PublishedMay 4, 2026

Related CVEs (CWE-189)

CVE-2026-7598
7.3
CVE-2026-3284
5.5
CVE-2026-3707
5.3
CVE-2026-5476
4.6
CVE-2026-4985
4.3
CVE-2026-8276
3.7

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-7736 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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