CVE-2002-1075: Buffer overflow in Pegasus mail client 4.01 and earlier allows remote attackers to cause a denial of service (

Q: How do I fix CVE-2002-1075?

pegasus mail: upgrade to newer than 4.01. Exact commands for each OS are on this page.

Q: Is CVE-2002-1075 being exploited?

CVE-2002-1075 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2002-1075 affect?

CVE-2002-1075 affects pegasus mail. Severity is high (CVSS 7.5). Buffer overflow in Pegasus mail client 4.01 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via long (1) To or (2) From headers.

Q: How urgent is CVE-2002-1075?

Priority 55/100. High severity; EPSS top 7%: very likely to be exploited; Public exploit reference

This month

HIGH 7.5UPGRADE

CVE-2002-1075 is a high-severity flaw (CVSS 7.5) affecting pegasus mail. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in Pegasus mail client 4.01 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via long (1) To or (2) From headers.

Why this priority

High severity
EPSS top 7%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	5.7% (top 7%)
CISA exploited list	No
Published	2002-10-04
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: david harris

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

Am I affected?

Timeline

2002-10-04 04:00 UTCPublished CVE record published
2026-06-16 21:58 UTCUpdated Record last modified

david harris pegasus mail UPGRADE

Affected: <= 4.01

Fixed in: newer than 4.01

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy pegasus-mail || rpm -q pegasus-mail || pegasus-mail --version

2. UPGRADE to newer than 4.01 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade pegasus-mail

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pegasus-mail

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Pegasus Mail 4.0 1 - Message Header Buffer Overflow

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-2002-1075?

pegasus mail: upgrade to newer than 4.01. Exact commands for each OS are on this page.

Is CVE-2002-1075 being exploited?

CVE-2002-1075 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-2002-1075 affect?

CVE-2002-1075 affects pegasus mail. Severity is high (CVSS 7.5). Buffer overflow in Pegasus mail client 4.01 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via long (1) To or (2) From headers.

How urgent is CVE-2002-1075?

Priority 55/100. High severity; EPSS top 7%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2000-0931 HIGH 7.5 DOWNGRADE Buffer overflow in Pegasus Mail 3.11 allows remote attackers to cause a denial of service and possibly execute
CVE-2000-0930 MEDIUM 5.0 DOWNGRADE Pegasus Mail 3.12 allows remote attackers to read arbitrary files via an embedded URL that calls the mailto: p
CVE-2009-3838 HIGH 9.3 DOWNGRADE Stack-based buffer overflow in Pegasus Mail (PMail) 4.41 and possibly 4.51 allows remote POP3 servers to cause
CVE-1999-1366 LOW 3.6 UPGRADE Pegasus e-mail client 3.0 and earlier uses weak encryption to store POP3 passwords in the pmail.ini file, whic

References

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