CVE-2024-32663Suricata 's http2 parser contains an improper compressed header handling can lead to resource starvation
- 7.5HighCVSS base score
- 0.96%Exploitation in 30 daysEPSS · top 38% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.5 and 6.0.19, a small amount of HTTP/2 traffic can lead to Suricata using a large amount of memory. The issue has been addressed in Suricata 7.0.5 and 6.0.19. Workarounds include disabling the HTTP/2 parser and reducing `app-layer.protocols.http2.max-table-size` value (default is 65536).
Timeline
ID reserved
By GitHub_M
- 21 days later
· 21 days later
Published
- 18 months later
· 18 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.96% · top 38% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
References
References8
- https://github.com/OISF/suricata/security/advisories/GHSA-9jxm-qw9v-266r (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://github.com/OISF/suricata/commit/08d93f7c3762781b743f88f9fdc4389eb9c3eb64 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/OISF/suricata/commit/c0af92295e833d1db29b184d63cd3b829451d7fd (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/OISF/suricata/commit/d24b37a103c04bb2667e449e080ba4c8e56bb019 (opens in a new tab)x_refsource_MISCx_transferred
- https://github.com/OISF/suricata/commit/e68ec4b227d19498f364a41eb25d3182f0383ca5 (opens in a new tab)x_refsource_MISCx_transferred
- https://redmine.openinfosecfoundation.org/issues/6892 (opens in a new tab)x_refsource_MISCx_transferred
- https://redmine.openinfosecfoundation.org/issues/6900 (opens in a new tab)x_refsource_MISCx_transferred
- https://lists.debian.org/debian-lts-announce/2025/03/msg00029.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2024-30454 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2024-32663)Record last updated .