The sdump function in sdump.c in fetchmail 6.3.11, 6.3.12, and 6.3.13, when running in verbose mode on platforms for which char is signed, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via an SSL X.509 certificate containing non-printable characters with the high bit set, which triggers a heap-based buffer overflow during escaping.
Conclusion & alert: CVE-2010-0562 is rated Moderate Risk (56.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.49%). Mandatory action: Review affected assets and schedule remediation.
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 | 2026-06-15 | 1.75% | 2.49% | +0.74% |
| 2 | 2025-03-30 | 2.21% | 1.75% | -0.46% |
| 3 | 2025-03-29 | — | 2.21% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 6.8 | 2.0 | MEDIUM |
|
8.6 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
low | CVE-2010-0562 low priority: Debian including 1 source packages (fetchmail), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2010-0562 |
gentoo
|
normal | CVE-2010-0562: 1 GLSA(s) (201006-12), 1 atom(s) (net-mail/fetchmail); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2010-0562 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2010-0562 |
ubuntu
|
low | CVE-2010-0562 low priority: Ubuntu including 1 source packages (fetchmail), 6 status rows across 6 suites (dapper, hardy, intrepid, jaunty, karmic, upstream): not-affected 5, released 1. | https://ubuntu.com/security/CVE-2010-0562 |
Not vulnerable. This issue did not affect the versions of fetchmail as shipped with Red Hat Enterprise Linux 3, 4, or 5.