CVE-2026-21898

{"id": "CVE-2026-21898", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.2, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 4.2, "exploitabilityScore": 3.9}]}, "published": "2026-01-10T01:16:17.957", "references": [{"url": "https://github.com/nasa/CryptoLib/releases/tag/v1.4.3", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nasa/CryptoLib/security/advisories/GHSA-7ch6-2pmg-m853", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nasa/CryptoLib/security/advisories/GHSA-7ch6-2pmg-m853", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-125"}]}], "descriptions": [{"lang": "en", "value": "CryptoLib provides a software-only solution using the CCSDS Space Data Link Security Protocol - Extended Procedures (SDLS-EP) to secure communications between a spacecraft running the core Flight System (cFS) and a ground station. Prior to version 1.4.3, the Crypto_AOS_ProcessSecurity function reads memory without valid bounds checking when parsing AOS frame hashes. This issue has been patched in version 1.4.3."}], "lastModified": "2026-01-15T21:48:49.657", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:nasa:cryptolib:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "AE1BE91E-2901-42AF-BC66-762CFA7A2582", "versionEndExcluding": "1.4.3"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}