CVE-2026-21898 is a memory out-of-bounds read vulnerability in CryptoLib versions prior to 1.4.3, specifically within the Crypto_AOS_ProcessSecurity function when parsing AOS frame hashes. This flaw affects the NASA CryptoLib software, which is used to secure communications between spacecraft and ground stations. Rated 8.2 HIGH on the CVSS scale, it presents a network-based attack vector with low complexity, potentially leading to a denial of service and limited confidentiality impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.4.3CPE matchmatch criteria | cpe:2.3:a:nasa:cryptolib:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.