CVE-2001-1173: Vulnerability in MasqMail before 0.1.15 allows local users to gain privileges via piped aliases.

Routine

HIGH 7.2DOWNGRADE

CVE-2001-1173 is a high-severity flaw (CVSS 7.2) affecting masqmail. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in MasqMail before 0.1.15 allows local users to gain privileges via piped aliases.

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.2 (High)
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Published	2001-07-26
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: masqmail

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2001-07-26 04:00 UTCPublished CVE record published
2026-06-16 21:55 UTCUpdated Record last modified

masqmail masqmail DOWNGRADE

Affected: 0.0.0 · 0.0.1 · 0.0.2 · 0.0.3 · 0.0.4 · 0.0.5 · 0.0.6 · 0.0.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.0.0

1. Check installed version

apt-cache policy masqmail || rpm -q masqmail || masqmail --version

2. No fixed release: DOWNGRADE to a release before 0.0.0 (Debian / Ubuntu)

apt-cache madison masqmail sudo apt install masqmail=<VERSION_BEFORE_0.0.0> sudo apt-mark hold masqmail

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list masqmail sudo dnf downgrade masqmail-<VERSION_BEFORE_0.0.0> sudo dnf versionlock add masqmail

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2001-1173?

masqmail: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2001-1173 being exploited?

CVE-2001-1173 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2001-1173 affect?

CVE-2001-1173 affects masqmail. Severity is high (CVSS 7.2). Vulnerability in MasqMail before 0.1.15 allows local users to gain privileges via piped aliases.

How urgent is CVE-2001-1173?

Priority 32/100. High severity

Related CVEs

CVE-2011-3350 CRITICAL 9.8 UPGRADE masqmail 0.2.21 through 0.2.30 improperly calls seteuid() in src/log.c and src/masqmail.c that results in impr
CVE-2005-2663 LOW 2.1 DOWNGRADE masqmail before 0.2.18 allows local users to overwrite arbitrary files via a symlink attack on a log file.
CVE-2005-2662 HIGH 7.5 DOWNGRADE masqmail before 0.2.18 allows remote attackers to execute arbitrary commands via crafted e-mail addresses that
CVE-2002-1279 HIGH 7.2 DOWNGRADE Multiple buffer overflows in conf.c for Masqmail 0.1.x before 0.1.17, and 0.2.x before 0.2.15, allow local use

References

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