CVE-2024-21909 json
Denial of service in CBOR library
published 2022-01-21 4 y ago modified 2026-11-08 22 h ago also EUVD-2022-0486 , GHSA-6r92-cgxc-r5fg
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 64%
- public exploits
- 0
- none known
Summary
PeterO.Cbor versions 4.0.0 through 4.5.0 are vulnerable to a denial of service vulnerability. An attacker may trigger the denial of service condition by providing crafted data to the DecodeFromBytes or other decoding mechanisms in PeterO.Cbor. Depending on the usage of the library, an unauthenticated and remote attacker may be able to cause the denial of service condition.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
1.06% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| nuget | PeterO.Cbor | >=4.0.0, <4.5.1 |
4.5.1 |
Classification
- Weakness
-
- CWE-407 Inefficient Algorithmic Complexity
References
-
github.com
/peteroupc/CBOR/commit/b4117dbbb4cd5a4a963f9d0c9aa132f033e15b95
patch, web
-
github.com
/peteroupc/CBOR/security/advisories/GHSA-6r92-cgxc-r5fg
vendor-advisory, web, third-party-advisory
-
github.com
/advisories/GHSA-6r92-cgxc-r5fg
vendor-advisory, third-party-advisory
-
github.com
/peteroupc/CBOR/compare/v4.5...v4.5.1
related, web, release-notes
-
vulncheck.com
/advisories/vc-advisory-GHSA-6r92-cgxc-r5fg
third-party-advisory
-
github.com
/peteroupc/CBOR
package
Sources
- CVE List CVE-2024-21909
- GitHub Advisory GHSA-6r92-cgxc-r5fg
- NVD CVE-2024-21909
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