Buffer overflow in the Mono.Math.BigInteger class in Mono 1.2.5.1 and earlier allows context-dependent attackers to execute arbitrary code via unspecified vectors related to Reduce in Montgomery-based Pow methods.
Conclusion & alert: CVE-2007-5197 is rated Moderate Risk (60.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.34%). Core evidence: EPSS rose +1.02% over the last day, indicating growing attacker interest. 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 | 2025-05-28 | 1.32% | 2.34% | +1.02% |
| 2 | 2025-03-30 | 1.98% | 1.32% | -0.66% |
| 3 | 2025-03-29 | — | 1.98% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2007-5197 not yet assigned priority: Debian including 1 source packages (mono), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2007-5197 |
gentoo
|
high | CVE-2007-5197: 1 GLSA(s) (200711-10), 1 atom(s) (dev-lang/mono); latest impact high. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2007-5197 |
redhat
|
— | — | https://access.redhat.com/security/cve/CVE-2007-5197 |
ubuntu
|
medium | CVE-2007-5197 medium priority: Ubuntu including 1 source packages (mono), 5 status rows across 5 suites (dapper, edgy, feisty, gutsy, upstream): released 5. | https://ubuntu.com/security/CVE-2007-5197 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| mono | mono | <= 1.2.5.1 | cpe:2.3:a:mono:mono:*:*:*:*:*:*:*:* |
| mono | mono | 1.0 | cpe:2.3:a:mono:mono:1.0:*:*:*:*:*:*:* |
| mono | mono | 1.0.5 | cpe:2.3:a:mono:mono:1.0.5:*:*:*:*:*:*:* |
| mono | mono | 1.1.4 | cpe:2.3:a:mono:mono:1.1.4:*:*:*:*:*:*:* |
| mono | mono | 1.1.8.3 | cpe:2.3:a:mono:mono:1.1.8.3:*:*:*:*:*:*:* |
| mono | mono | 1.1.13 | cpe:2.3:a:mono:mono:1.1.13:*:*:*:*:*:*:* |
| mono | mono | 1.1.13.4 | cpe:2.3:a:mono:mono:1.1.13.4:*:*:*:*:*:*:* |
| mono | mono | 1.1.13.6 | cpe:2.3:a:mono:mono:1.1.13.6:*:*:*:*:*:*:* |
| mono | mono | 1.1.13.7 | cpe:2.3:a:mono:mono:1.1.13.7:*:*:*:*:*:*:* |
| mono | mono | 1.1.17 | cpe:2.3:a:mono:mono:1.1.17:*:*:*:*:*:*:* |
| mono | mono | 1.1.17.1 | cpe:2.3:a:mono:mono:1.1.17.1:*:*:*:*:*:*:* |
| mono | mono | 1.1.18 | cpe:2.3:a:mono:mono:1.1.18:*:*:*:*:*:*:* |