Vulnerability-Lookup

CVE-2025-64096 (GCVE-0-2025-64096)

Vulnerability from cvelistv5 – Published: 2025-10-30 17:09 – Updated: 2026-01-09 22:54

Title

CryptoLib vulnerable to Stack Buffer Overflow in Crypto_Key_Update due to missing TLV length check

Summary

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 1.4.2, there is a missing bounds check in Crypto_Key_update() (crypto_key_mgmt.c) which allows a remote attacker to trigger a stack-based buffer overflow by supplying a TLV packet with a spoofed length field. The function calculates the number of keys from an attacker-controlled field (pdu_len), which may exceed the static array size (kblk[98]), leading to an out-of-bounds write and potential memory corruption. This vulnerability is fixed in 1.4.2.

Severity

8.8 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-10-30 18:15 UTC

CWE

CWE-121 - Stack-based Buffer Overflow

Assigner

GitHub_M mitre root

References

1 reference

URL	Tags
https://github.com/nasa/CryptoLib/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version	CPE status
nasa	CryptoLib	Affected: < 1.4.2	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2025-64096

Vulnerability from fkie_nvd - Published: 2025-10-30 17:15 - Updated: 2026-06-17 09:53

Severity

8.8 (High) - CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/nasa/CryptoLib/security/advisories/GHSA-w6c3-pxvr-6m6j	Exploit, Vendor Advisory
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/nasa/CryptoLib/security/advisories/GHSA-w6c3-pxvr-6m6j	Exploit, Vendor Advisory

Impacted products

	Vendor	Product	Version
	nasa	cryptolib	*

JSON

To clipboard

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          "product": "CryptoLib",
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          "versions": [
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              "status": "affected",
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    }
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    }
  ],
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  "lastModified": "2026-06-17T09:53:48.950",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.