Postfix before 2.3.15, 2.4 before 2.4.8, 2.5 before 2.5.4, and 2.6 before 2.6-20080814, when the operating system supports hard links to sym
Postfix before 2.3.15, 2.4 before 2.4.8, 2.5 before 2.5.4, and 2.6 before 2.6-20080814, when the operating system supports hard links to symlinks, allows local users to append e-mail messages to a file to which a root-owned symlink points, by creating a hard link to this symlink and then sending a message. NOTE: this can be leveraged to gain privileges if there is a symlink to an init script.
- Published
- Aug 18, 2008
- Updated
- Jun 16, 2026
- EPSS
- 1.0% · 61th percentile
- CWE
- CWE-264
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Report tools
Action score
24
Monitor
Low priority for now.
- CVSS
- 24 / 40 · 6.2 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.0%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| postfix | postfix | cpe:2.3:a:postfix:postfix |
Using postfix? Add it to your stack and be the first to know about CVEs like this one. (Email server)
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- postfix postfix2.3.0
- postfix postfix2.3.1
- postfix postfix2.3.10
- postfix postfix2.3.11
- postfix postfix2.3.12
- postfix postfix2.3.13
- postfix postfix2.3.14
- postfix postfix2.3.2
- postfix postfix2.3.3
- postfix postfix2.3.4
- postfix postfix2.3.5
- postfix postfix2.3.6
- postfix postfix2.3.7
- postfix postfix2.3.8
- postfix postfix2.3.9
- postfix postfix2.4.0
- postfix postfix2.4.1
- postfix postfix2.4.2
- postfix postfix2.4.3
- postfix postfix2.4.4
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | postfix | before 2.5.4-1 | 2.5.4-1 |
| Debian:4.0 | postfix | before 2.3.8-2etch1 | 2.3.8-2etch1 |
| Debian:4.0 | postfix | before 2.3.8-2+etch1 | 2.3.8-2+etch1 |
| Debian:5.0 | postfix | before 2.5.2-2lenny1 | 2.5.2-2lenny1 |
| Red Hat:enterprise_linux:3::as | postfix | before 2:2.0.16-14.1.RHEL3 | 2:2.0.16-14.1.RHEL3 |
| Red Hat:enterprise_linux:3::as | postfix-debuginfo | before 2:2.0.16-14.1.RHEL3 | 2:2.0.16-14.1.RHEL3 |
| Red Hat:enterprise_linux:4::as | postfix | before 2:2.2.10-1.2.1.el4_7 | 2:2.2.10-1.2.1.el4_7 |
| Red Hat:enterprise_linux:4::as | postfix-debuginfo | before 2:2.2.10-1.2.1.el4_7 | 2:2.2.10-1.2.1.el4_7 |
| Red Hat:enterprise_linux:4::as | postfix-pflogsumm | before 2:2.2.10-1.2.1.el4_7 | 2:2.2.10-1.2.1.el4_7 |
| Red Hat:enterprise_linux:5::client | postfix | before 2:2.3.3-2.1.el5_2 | 2:2.3.3-2.1.el5_2 |
| Red Hat:enterprise_linux:5::client | postfix-debuginfo | before 2:2.3.3-2.1.el5_2 | 2:2.3.3-2.1.el5_2 |
| Red Hat:enterprise_linux:5::client | postfix-pflogsumm | before 2:2.3.3-2.1.el5_2 | 2:2.3.3-2.1.el5_2 |
Same product
postfix: all recordsOther highest-scoring records for the same primary product.
- CVE-2011-1720The SMTP server in Postfix before 2.5.13, 2.6.x before 2.6.10, 2.7.x before 2.7.4, and 2.8.x before 2.8.3, when certain Cyrus SASL authentic33Monitor
- CVE-2011-0411The STARTTLS implementation in Postfix 2.4.x before 2.4.16, 2.5.x before 2.5.12, 2.6.x before 2.6.9, and 2.7.x before 2.7.3 does not properl32Monitor
- CVE-2017-10140Postfix before 2.11.10, 3.0.x before 3.0.10, 3.1.x before 3.1.6, and 3.2.x before 3.2.2 might allow local users to gain privileges by levera31Monitor
- CVE-2026-43964Postfix before 3.8.16, 3.9 before 3.9.10, and 3.10 before 3.10.9 sometimes allows a buffer over-read and process crash via an enhanced statu30Monitor
- CVE-2012-0811Multiple SQL injection vulnerabilities in Postfix Admin (aka postfixadmin) before 2.3.5 allow remote authenticated users to execute arbitrar27Monitor
- CVE-2009-2939The postfix.postinst script in the Debian GNU/Linux and Ubuntu postfix 2.5.5 package grants the postfix user write access to /var/spool/post27Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:postfix | 2.5.4-1 · Debian:12 | Package registry (OSV) |
| red hat:postfix | 2:2.0.16-14.1.RHEL3 · Red Hat:enterprise_linux:3::as | Package registry (OSV) |
| red hat:postfix-debuginfo | 2:2.0.16-14.1.RHEL3 · Red Hat:enterprise_linux:3::as | Package registry (OSV) |
| red hat:postfix-pflogsumm | 2:2.2.10-1.2.1.el4_7 · Red Hat:enterprise_linux:4::as | Package registry (OSV) |
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Exploit-DB entry ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | local | 2008-08-31 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Published
- First PoC+12 d
- TodaySep 30, 2026+6617 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Special conditions such as timing or configuration are required.
If successful
- Confidentiality
- C · data can be read
- Integrity
- C · data or configuration can be modified
- Availability
- C · the service can be disrupted
- Attack complexity
- High
- Confidentiality impact
- C
- Integrity impact
- C
- Availability impact
- C
Weakness class (CWE)
CWE-264 · Permissions, Privileges, and Access ControlsCVSS vector
AV:L/AC:H/Au:N/C:C/I:C/A:C
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- ftp://ftp.porcupine.org/mirrors/postfix-release/experimental/postfix-2.6-20080814.HISTORY
- ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-2.3.15.HISTORY
- ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-2.4.8.HISTORY
- ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-2.5.4.HISTORY
- article.gmane.org/gmane.mail.postfix.announce/110
- lists.opensuse.org/opensuse-security-announce/2008-08/msg00002.html
- secunia.com/advisories/31469
- secunia.com/advisories/31474
- secunia.com/advisories/31477
- secunia.com/advisories/31485
- secunia.com/advisories/31500
- secunia.com/advisories/31530
- secunia.com/advisories/32231
- security.gentoo.org/glsa/glsa-200808-12.xml
- securityreason.com/securityalert/4160
- wiki.rpath.com/Advisories:rPSA-2008-0259
- www.debian.org/security/2008/dsa-1629
- www.kb.cert.org/vuls/id/938323
- www.mandriva.com/security/advisories?name=MDVSA-2008:171
- www.redhat.com/support/errata/RHSA-2008-0839.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.