VulnerabilityModified
CVE-2020-11713
wolfSSL 4.3.0 has mulmod code in wc_ecc_mulmod_ex in ecc.c that does not properly resist timing side-channel attacks.
HIGH 7.5EPSS 2.01%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.01%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
wolfSSL 4.3.0 has mulmod code in wc_ecc_mulmod_ex in ecc.c that does not properly resist timing side-channel attacks.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 2.01% probability · 81th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-203
- Affected
- wolfssl/wolfssl
- Source
- cve@mitre.org
EPSS 2.0% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://gist.github.com/pietroborrello/7c5be2d1dc15349c4ffc8671f0aad04fExploit, Third Party Advisory
- https://github.com/wolfSSL/wolfssl/pull/2894/Patch, Third Party Advisory
- https://gist.github.com/pietroborrello/7c5be2d1dc15349c4ffc8671f0aad04fExploit, Third Party Advisory
- https://github.com/wolfSSL/wolfssl/pull/2894/Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.