CVE-2006-0058Sendmail Vulnerability
Signal handler race condition in Sendmail 8.13.x before 8.13.6 allows remote attackers to execute arbitrary code by triggering timeouts in a way that causes the setjmp and longjmp function calls to be interrupted and modify unexpected memory locations.
Published Mar 22, 2006 · Updated Aug 4, 2026 · Also known as DEBIAN-CVE-2006-0058, DSA-1015-1
Key Facts
Patch immediately- CVE-2006-0058 is a high-severity vulnerability (CVSS 7.6 v2) affecting Sendmail.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 29% probability of exploitation in the next 30 days.
- Fixed versions are available, including Sendmail 0:8.12.11-4.RHEL3.4, Sendmail 8.12.3-7.2, Sendmail 8.13.4-3sarge1.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v2
7.6
AV:N/AC:H/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
29%
Higher than 98.1% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
39/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
- advisoryhttps://security-tracker.debian.org/tracker/CVE-2006-0058
- advisoryRHSA-2006:0264
- advisoryRHSA-2006:0265
- patchRHSA-2006:0264
- patchRHSA-2006:0265
Description
Signal handler race condition in Sendmail 8.13.x before 8.13.6 allows remote attackers to execute arbitrary code by triggering timeouts in a way that causes the setjmp and longjmp function calls to be interrupted and modify unexpected memory locations.
Affected Products
18 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| SendmailSendmail | 8.13.0, 8.13.1, 8.13.2, 8.13.3, 8.13.4, 8.13.5 | 8.13.6-1 |
Patched Releases
Sendmail
0:8.12.11-4.RHEL3.4, 8.12.3-7.2, 8.13.4-3sarge1, 8.13.6-1
Timeline
Publicly disclosed
Mar 22, 2006
Last updated
Aug 4, 2026
References
- advisorysecurity-tracker.debian.org · CVE-2006-0058
- advisoryRHSA-2006:0264
- advisoryRHSA-2006:0265
- patchRHSA-2006:0264
- patchRHSA-2006:0265
FAQ
Common Questions.
Signal handler race condition in Sendmail 8.13.x before 8.13.6 allows remote attackers to execute arbitrary code by triggering timeouts in a way that causes the setjmp and longjmp function calls to be interrupted and modify unexpected memory locations.
Affected: Sendmail versions 8.13.0, 8.13.1, 8.13.2, 8.13.3, 8.13.4, 8.13.5. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Sendmail 0:8.12.11-4.RHEL3.4, Sendmail 8.12.3-7.2, Sendmail 8.13.4-3sarge1.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2006-0058 On Your Attack Surface?
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