CVE-2025-43915 json
Linkerd resource exhaustion vulnerability
published 2025-05-05 18 mo ago modified 2026-06-17 4 mo ago also GHSA-42mr-jpwh-m9rv , GO-2025-3664 , EUVD-2025-13396
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 27%
- public exploits
- 0
- none known
Summary
In Linkerd edge releases before edge-25.2.1, and Buoyant Enterprise for Linkerd releases 2.13.0–2.13.7, 2.14.0–2.14.10, 2.15.0–2.15.7, 2.16.0–2.16.4, and 2.17.0–2.17.1, resource exhaustion can occur for Linkerd proxy metrics.
Patch / fix
- go github.com/linkerd/linkerd2 0.0.0-20250212165942-faa3f617eef5
- linkerd buoyant 2.16.5, 2.17.2
- linkerd linkerd 25.2.1
- govulncheck-vulndb openSUSE Tumbleweed 0.0.20250520T172319-1.1
opensuse advisories openSUSE-SU-2025:15144-1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 27% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H |
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H |
| GitHub | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/linkerd/linkerd2 | <0.0.0-20250212165942-faa3f617eef5 all versions |
0.0.0-20250212165942-faa3f617eef5 |
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
docs.buoyant.io
/security/advisories/2025-01/
vendor-advisory
-
buoyant.io
/resources
web, product
-
nvd.nist.gov
/vuln/detail/CVE-2025-43915
advisory
-
docs.buoyant.io
/security/advisories/2025-01
web
-
github.com
/linkerd/linkerd2
package
-
pkg.go.dev
/vuln/GO-2025-3664
web
-
github.com
/advisories/GHSA-42mr-jpwh-m9rv
advisory
Sources
- CVE List CVE-2025-43915
- GitHub Advisory GHSA-42mr-jpwh-m9rv
- NVD CVE-2025-43915
- OSV GO-2025-3664
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.