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CVE-2026-22023

Nasa Cryptolib out-of-bounds read

7.5 HIGHPublic exploitEPSS 0.57%
  1. Published10 Jan 2026

Description

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, there is an out-of-bounds heap read vulnerability in cryptography_aead_encrypt(). This issue has been patched in version 1.4.3.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Nasa Cryptolib< 1.4.3

Remediation

Fixed in
Nasa Cryptolib≥ 1.4.3

References

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Frequently asked

Is CVE-2026-22023 being actively exploited?

CVE-2026-22023 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.57%.

How severe is CVE-2026-22023?

CVE-2026-22023 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 0.57% probability of exploitation.

Which products are affected by CVE-2026-22023?

Affected products include Nasa Cryptolib.

How do I fix CVE-2026-22023?

Upgrade affected software to a fixed version, for example Nasa Cryptolib 1.4.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.