Ribose RNP before 0.16.3 may hang when the input is malformed.
Conclusion & alert: CVE-2023-29479 is rated Low Risk (28.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.07%). 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 | 2025-11-21 | 0.41% | 0.07% | -0.34% |
| 2 | 2025-11-18 | 0.07% | 0.41% | +0.34% |
| 3 | 2025-04-15 | — | 0.07% | — |
Full EPSS history (8 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2023-29479 not yet assigned priority: Debian including 2 source packages (rnp, thunderbird), 9 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 9. | https://security-tracker.debian.org/tracker/CVE-2023-29479 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2023-29479 |
ubuntu
|
medium | CVE-2023-29479 medium priority: Ubuntu including 1 source packages (thunderbird), 8 status rows across 8 suites (bionic, focal, jammy, kinetic, lunar, trusty, upstream, xenial): released 4, ignored 2, needs-triage 1, not-affected 1. | https://ubuntu.com/security/CVE-2023-29479 |
| URL | Tags |
|---|---|
| https://cve.ribose.com/advisories/ra-2023-04-11/ | Vendor Advisory |
| https://open.ribose.com/advisories/ra-2023-04-11/ | |
| https://www.rnpgp.org/blog/2023-04-13-rnp-release-0-16-3/ | Release Notes |