Format string vulnerability in the helptags_one function in src/ex_cmds.c in Vim 6.4 and earlier, and 7.x up to 7.1, allows user-assisted remote attackers to execute arbitrary code via format string specifiers in a help-tags tag in a help file, related to the helptags command.
Conclusion & alert: CVE-2007-2953 is rated Moderate Risk (62.7/100): CVSS Medium severity, with high exploitation likelihood (EPSS 14.71%, 95th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +2.37% over the last day, indicating growing attacker interest. Mandatory action: High exploitation likelihood—assess exposure and prioritize 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 | 2026-05-11 | 12.34% | 14.71% | +2.37% |
| 2 | 2026-03-19 | 11.92% | 12.34% | +0.42% |
| 3 | 2025-10-15 | — | 11.92% | — |
Full EPSS history (17 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-2007-2953 low priority: Debian including 1 source packages (vim), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2007-2953 |
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2007-2953 |
suse
|
medium | CVE-2007-2953 severity moderate: SUSE including 23 source package names (gvim-7.2-8.15.2, gvim-7.2-8.8, …), 31 product×package rows across 8 product lines (SUSE Linux Enterprise Server 11 SP1, SUSE Linux Enterprise Server 11 SP2, … (8 product lines)): Fixed 31. | https://www.suse.com/security/cve/CVE-2007-2953/ |
ubuntu
|
medium | CVE-2007-2953 medium priority: Ubuntu including 1 source packages (vim), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): released 3, needs-triage 1. | https://ubuntu.com/security/CVE-2007-2953 |
Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=248542 The Red Hat Security Response Team has rated this issue as having low security impact, a future update may address this flaw. More information regarding issue severity can be found here: http://www.redhat.com/security/updates/classification/
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| vim_development_group | vim | <= 6.4 | cpe:2.3:a:vim_development_group:vim:*:*:*:*:*:*:*:* |
| vim_development_group | vim | 7.0 | cpe:2.3:a:vim_development_group:vim:7.0:*:*:*:*:*:*:* |
| vim_development_group | vim | 7.1 | cpe:2.3:a:vim_development_group:vim:7.1:*:*:*:*:*:*:* |
| vim_development_group | vim | 7.1.38 | cpe:2.3:a:vim_development_group:vim:7.1.38:*:*:*:*:*:*:* |