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CVE-2006-1255

79
FAUCET Score

CVE-2006-1255 describes a critical stack-based buffer overflow vulnerability in the IMAP service of Mercur Messaging 5.0 SP3 and earlier. This flaw allows unauthenticated remote attackers to trigger a denial of service by crashing the application, and potentially execute arbitrary code, by sending an overly long string to either the LOGIN or SELECT commands. With a CVSS score of 10.0, this vulnerability is highly severe, indicating easy exploitation over the network with complete compromise of confidentiality, integrity, and availability. While not listed on the KEV catalog, multiple public exploit modules exist for Metasploit and ExploitDB, confirming its exploitability, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2005_5.0_sp3CPE matchmatch criteria
cpe:2.3:a:mercur:mercur_messaging:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
68.15%
Probability of exploitation in next 30 days
EPSS Percentile
99.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Metasploit: Mercur v5.0 IMAP SP3 SELECT Buffer Overflow · Mar 17, 2006
ExploitDB: EDB-16476 · Sep 20, 2010
This CVE's current EPSS score of 0.6815 is in the 99th percentile among its peer group of 51,466 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

seclists.org / fulldisclosure/2006/Mar/1111
seclists.org / fulldisclosure/2006/Mar/1167
secunia.com / advisories/19267
ExploitVendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/25290
osvdb.org / 23950
securityfocus.com / bid/17138
vupen.com / english/advisories/2006/0977