CVE-2025-43972: gobgp
CVSS: 7.5v3.1HighAnalyzed
AliasesUBUNTU-CVE-2025-43972DEBIAN-CVE-2025-43972GHSA-mfvv-mgf6-q25rGO-2025-3632CGA-25q3-hr2f-999hCGA-276r-8996-4hxqCGA-28r5-683v-97cvCGA-477g-26qq-ff89CGA-4fqf-jm6c-qjp8CGA-4whh-qjqx-6qr9CGA-54g8-jc8m-88q5CGA-563c-32j9-6326CGA-6xp4-j4hh-6692CGA-6xvq-fcvm-mpffCGA-7233-6qrw-9hjgCGA-78vp-prmp-89fwCGA-8qcq-rfx7-vcchCGA-9mrj-35w9-jxqjCGA-9q72-8gx7-q43vCGA-9x55-gwp6-2fqpCGA-fpxc-xcw5-j9mjCGA-gw73-g9v7-jwqfCGA-gx9f-r3c8-p26hCGA-jcmx-2cjq-qx6rCGA-jghp-qjc2-g63gCGA-jmjg-8x63-v47qCGA-jvfw-5r22-62fqCGA-p2jh-8j7c-j7qjCGA-p4p2-p753-p5cmCGA-p4vj-w6cx-7m56CGA-pv66-hfp5-85vpCGA-qp34-7mgq-g7c8CGA-r57v-jc92-f7x9CGA-rqfp-jhjc-m685CGA-v2f6-fx5v-6ppwCGA-v6mx-rccx-rvm4CGA-vxm9-rhv4-8q8fCGA-vxqh-p4jh-933vCGA-w776-2mrc-f553CGA-x8pv-w9pm-p75vCGA-x8xq-px2p-829mCGA-xfxh-9jqj-9cvx
Published 21-04-2025Last modified 21-04-2025
Vulnerability summary
CVE-2025-43972 is a high (CVSS 7.5) vulnerability in gobgp. EPSS estimates a 0.55% chance of exploitation in the next 30 days, higher than 44.8% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
0.55%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 2 · Related 4Timeline
- 21-04-2025PublishedVulnerability first disclosed.
- 21-04-2025Last modifiedVulnerability information updated.
Description
An issue was discovered in GoBGP before 3.35.0. An attacker can cause a crash in the pkg/packet/bgp/bgp.go flowspec parser by sending fewer than 20 bytes in a certain context.
CVSS metrics
6 scores · 6 sources · 1 versionHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSources6 sources · 6.8–7.5
- CVE.orgCNA6.8MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · GoEcosystem advisory · calculated6.8MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:HDiffers
- OSV · ChainguardEcosystem advisory · calculated6.8MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.55%
Chance of exploitation in the next 30 days
Percentile
45%
Versus all other CVEs
30-day change
0.00 pp
From 0.55% on 19-09-2026
19-09-202619-10-2026
EPSS score0.55%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Chainguard19 products
- cilium-1.15< 1.15.19-r3
- cilium-1.16< 1.16.9-r1
- cilium-1.16-clustermesh-apiserver< 1.16.9-r1
- cilium-1.16-container-init< 1.16.9-r1
- cilium-1.16-container-init-compat< 1.16.9-r1
Debian1 product
- gobgpAll versions (No fix recorded) | < 3.35.0-1
Github.com/osrg1 product
- gobgpAll versions (No fix recorded)
Github.com/osrg/gobgp1 product
- v3< 3.35.0
Gobgp1 product
- gobgp< 3.35.0
Osrg1 product
- gobgp< 3.35.0
Ubuntu1 product
- gobgp< 1.29-1ubuntu0.1+esm1 | < 2.12.0-1ubuntu0.1~esm2 | < 2.25.0-3ubuntu0.1+esm2 | < 3.23.0-1ubuntu0.3+esm2
7 vendors · 25 products
References
10 links
- github.com/osrg/gobgpPACKAGE