CVE-2026-22697: high-severity vulnerability in nasa CryptoLib
CryptoLib Has Heap Buffer Overflow Vulnerability in KMC Base64 Decode Handling (KMC JSON base64ciphertext/base64cleartext)
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.5%
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, CryptoLib’s KMC crypto service integration is vulnerable to a heap buffer overflow when decoding Base64-encoded ciphertext/cleartext fields returned by the KMC service. The decode destination buffer is sized using an expected output length (len_data_out), but the Base64 decoder writes output based on the actual Base64 input length and does not enforce any destination size limit. An oversized Base64 string in the KMC JSON response can cause out-of-bounds writes on the heap, resulting in process crash and potentially code execution under certain conditions. This issue has been patched in version 1.4.3.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
nasa · CryptoLibRelated CVEs — nasa CryptoLib
In the same product, most dangerous first.
CVE-2025-30216CRITICALCryptoLib Has Heap Overflow in Crypto_TM_ProcessSecurity due to Unchecked Secondary Header LengthEPSS 2.6%CVE-2025-29912HIGHCryptoLib Has Heap Buffer Overflow Due to Unsigned Integer Underflow in Crypto_TC_ProcessSecurityEPSS 1.1%CVE-2025-29909HIGHCryptoLib's Crypto_TC_ApplySecurity() Has a Heap Buffer Overflow VulnerabilityEPSS 1.1%CVE-2025-59534HIGHCryptoLib command Injection vulnerability in initialize_kerberos_keytab_file_login()EPSS 0.9%CVE-2025-29911HIGHCryptoLib Has Heap Buffer Overflow in Crypto_AOS_ProcessSecurity FunctionEPSS 0.7%CVE-2025-29913HIGHCryptoLib's Crypto_TC_Prep_AAD Has Buffer Overflow Due to Integer UnderflowEPSS 0.7%