The IMAP service (MEIMAPS.exe) in MailEnable Professional Edition and Enterprise Edition 3.13 and earlier allows remote attackers to cause a denial of service (crash) via (1) SEARCH and (2) APPEND commands without required arguments, which triggers a NULL pointer dereference.
Conclusion & alert: CVE-2008-1277 is rated High Exploit Risk (81/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 5.19%). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| 31360 | exploit_db | edb | 2008-03-07 | Exploit-DB ↗ |
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
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 | 2025-12-28 | 6.50% | 5.19% | -1.30% |
| 2 | 2025-04-30 | 6.07% | 6.50% | +0.43% |
| 3 | 2025-03-30 | — | 6.07% | — |
Full EPSS history (13 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 9.0 | 2.0 | HIGH |
|
8.0 | 10.0 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| mailenable | mailenable_enterprise | <= 3.13 | cpe:2.3:a:mailenable:mailenable_enterprise:*:*:*:*:*:*:*:* |
| mailenable | mailenable_professional | <= 3.13 | cpe:2.3:a:mailenable:mailenable_professional:*:*:*:*:*:*:*:* |