The ACL implementation in Cisco IOS before 15.1(1)SY on Catalyst 6500 and 7600 devices allows local users to cause a denial of service (device reload) via a "no object-group" command followed by an object-group command, aka Bug ID CSCts16133.
Conclusion & alert: CVE-2012-5037 is rated Low Risk (24.7/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.26%). 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 | 2026-06-15 | 0.06% | 0.26% | +0.20% |
| 2 | 2023-10-18 | 0.04% | 0.06% | +0.02% |
| 3 | 2023-03-07 | — | 0.04% | — |
Full EPSS history (4 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 4.6 | 2.0 | MEDIUM |
|
3.1 | 6.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| cisco | ios | <= 15.1 | cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:* |
| cisco | catalyst_6500 | — | cpe:2.3:h:cisco:catalyst_6500:*:*:*:*:*:*:*:* |
| cisco | catalyst_7600 | — | cpe:2.3:h:cisco:catalyst_7600:*:*:*:*:*:*:*:* |