functions/imap_general.php in SquirrelMail, as used in Red Hat Enterprise Linux (RHEL) 4 and 5, does not properly handle 8-bit characters in passwords, which allows remote attackers to cause a denial of service (disk consumption) by making many IMAP login attempts with different usernames, leading to the creation of many preference files. NOTE: this issue exists because of an incorrect fix for CVE-2010-2813.
Conclusion & alert: CVE-2012-2124 is rated Moderate Risk (45.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.77%). 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 | 2025-07-12 | 0.69% | 0.77% | +0.08% |
| 2 | 2025-03-30 | 1.70% | 0.69% | -1.01% |
| 3 | 2025-03-29 | — | 1.70% | — |
Full EPSS history (9 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.0 | 2.0 | MEDIUM |
|
10.0 | 2.9 | [email protected] |
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
low | — | https://access.redhat.com/security/cve/CVE-2012-2124 |
ubuntu
|
low | CVE-2012-2124 low priority: Ubuntu including 1 source packages (squirrelmail), 6 status rows across 6 suites (hardy, lucid, natty, oneiric, precise, upstream): not-affected 6. | https://ubuntu.com/security/CVE-2012-2124 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| squirrelmail | squirrelmail | — | cpe:2.3:a:squirrelmail:squirrelmail:-:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 4 | cpe:2.3:o:redhat:enterprise_linux:4:*:*:*:*:*:*:* |
| redhat | enterprise_linux | 5 | cpe:2.3:o:redhat:enterprise_linux:5:*:*:*:*:*:*:* |