Heap-based Buffer Overflow Affecting openssl package, versions >=0.10.50 <0.10.80
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published20 May 2026
- disclosed19 May 2026
- creditAli Firas
Introduced: 19 May 2026
NewCVE-2026-45784 (opens in a new tab)How to fix?
Upgrade openssl to version 0.10.80 or higher.
Overview
openssl is a bindings for the Rust programming language.
Affected versions of this package are vulnerable to Heap-based Buffer Overflow in the CipherCtxRef::cipher_update_inplace() function when handling AES key-wrap-with-padding ciphers. An attacker can cause heap corruption by providing a plaintext length that is not a multiple of 8, resulting in up to 7 bytes being written past the end of the output buffer.
Note: This is a bypass of the fix for the vulnerability described in CVE-2026-44662.