How severe is CVE-2026-22023?

CVE-2026-22023 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-22023 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-22023?

CVE-2026-22023 affects Nasa Cryptolib. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-22023?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-22023 have an EU (EUVD) identifier?

Yes. CVE-2026-22023 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1893.

When was CVE-2026-22023 published?

CVE-2026-22023 was published on 2026-01-10 and last updated on 2026-06-17.

CVE-2026-22023

CVE-2026-22023 is a high-severity vulnerability in Nasa Cryptolib with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-125.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 8.2
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-1893
Weakness: CWE-125
Affected product: Nasa Cryptolib
Published: 2026-01-10
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-22023?: 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.
How severe is CVE-2026-22023?: CVE-2026-22023 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-22023 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-22023?: CVE-2026-22023 affects Nasa Cryptolib. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-22023?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-22023 have an EU (EUVD) identifier?: Yes. CVE-2026-22023 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-1893.
When was CVE-2026-22023 published?: CVE-2026-22023 was published on 2026-01-10 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:nasa:cryptolib:*:*:*:*:*:*:*:*

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