Issue summary: Use of -addreject option with the openssl x509 application adds a trusted use instead of a rejected use for a certificate. Impact summary: If a user intends to make a trusted certificate rejected for a particular use it will be instead marked as trusted for that use. A copy & paste error during minor refactoring of the code introduced this issue in the OpenSSL 3.5 version. If, for example, a trusted CA certificate should be trusted only for the purpose of authenticating TLS servers but not for CMS signature verification and the CMS signature verification is intended to be marked as rejected with the -addreject option, the resulting CA certificate will be trusted for CMS signature verification purpose instead. Only users which use the trusted certificate format who use the openssl x509 command line application to add rejected uses are affected by this issue. The issues affecting only the command line application are considered to be Low severity. The FIPS modules in 3.5, 3.4, 3.3, 3.2, 3.1 and 3.0 are not affected by this issue. OpenSSL 3.4, 3.3, 3.2, 3.1, 3.0, 1.1.1 and 1.0.2 are also not affected by this issue.
Conclusion & alert: CVE-2025-4575 is rated Low Risk (34/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.08%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-03-18 | 0.01% | 0.08% | +0.06% |
| 2 | 2025-11-21 | 0.07% | 0.01% | -0.06% |
| 3 | 2025-11-18 | — | 0.07% | — |
Full EPSS history (4 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.5 | 3.1 | MEDIUM |
|
3.9 | 2.5 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2025-4575: 1 source package rows (openssl); 4 state rows across 2 repos (3.22-main, edge-main); fixed 2, open 2. | https://security.alpinelinux.org/vuln/CVE-2025-4575 |
debian
|
unimportant | CVE-2025-4575 unimportant priority: Debian including 1 source packages (openssl), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2025-4575 |
suse
|
medium | CVE-2025-4575 severity moderate: SUSE including 59 source package names (compat-openssl098, libopenssl-1_0_0-devel, …), 453 product×package rows across 50 product lines (SLES-LTSS-TERADATA 15 SP2, SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS, … (50 product lines)): Known Not Affected 436, Fixed 17. | https://www.suse.com/security/cve/CVE-2025-4575/ |
ubuntu
|
low | CVE-2025-4575 low priority: Ubuntu including 4 source packages (edk2, nodejs, openssl, openssl1.0), 33 status rows across 9 suites (bionic, focal, jammy, noble, oracular, plucky, trusty, upstream, xenial): not-affected 27, DNE 5, needs-triage 1. | https://ubuntu.com/security/CVE-2025-4575 |
| URL | Tags |
|---|---|
| https://github.com/openssl/openssl/commit/e96d22446e633d117e6c9904cb15b4693e956eaa | Patch |
| https://openssl-library.org/news/secadv/20250522.txt | Vendor Advisory |
| http://www.openwall.com/lists/oss-security/2025/05/22/1 | Mailing List Third Party Advisory |