CVE-2007-2362: Multiple buffer overflows in MyDNS 1.1.0 allow remote attackers to (1) cause a denial of service (daemon crash

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HIGH 9.0DOWNGRADE

CVE-2007-2362 is a high-severity flaw (CVSS 9.0) affecting mydns. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Multiple buffer overflows in MyDNS 1.1.0 allow remote attackers to (1) cause a denial of service (daemon crash) and possibly execute arbitrary code via a certain update, which triggers a heap-based buffer overflow in update.c; and (2) cause a denial of service (daemon crash) via unspecified vectors that trigger an off-by-one stack-based buffer overflow in update.c.

Why this priority

Critical severity
EPSS top 3%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	9.0 (High)
EPSS exploit chance	16.1% (top 3%)
CISA exploited list	No
Published	2007-04-30
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: don moore

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

Am I affected?

Timeline

2007-04-30 22:19 UTCPublished CVE record published
2026-06-16 22:39 UTCUpdated Record last modified

don moore mydns DOWNGRADE

Affected: 1.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.1.0 (Debian / Ubuntu)

apt-cache madison mydns sudo apt install mydns=<VERSION_BEFORE_1.1.0> sudo apt-mark hold mydns

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

dnf --showduplicates list mydns sudo dnf downgrade mydns-<VERSION_BEFORE_1.1.0> sudo dnf versionlock add mydns

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.

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: MyDNS 1.1.0 - Remote Heap Overflow (PoC)

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-2007-2362?

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

Is CVE-2007-2362 being exploited?

CVE-2007-2362 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-2007-2362 affect?

CVE-2007-2362 affects mydns. Severity is high (CVSS 9.0). Multiple buffer overflows in MyDNS 1.1.0 allow remote attackers to (1) cause a denial of service (daemon crash) and possibly execute arbitrary code via a certain update, which triggers a heap-based buffer overflow in update.c; and (2) cause

How urgent is CVE-2007-2362?

Priority 61/100. Critical severity; EPSS top 3%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2006-2075 MEDIUM 5.0 DOWNGRADE Unspecified vulnerability in MyDNS 1.1.0 allows remote attackers to cause a denial of service via a crafted DN
CVE-2006-0351 MEDIUM 5.0 DOWNGRADE Unspecified "critical denial-of-service vulnerability" in MyDNS before 1.1.0 has unknown impact and attack vec
CVE-2004-0789 MEDIUM 5.0 DOWNGRADE DOWNGRADE Multiple implementations of the DNS protocol, including (1) Poslib 1.0.2-1 and earlier as used by Posadis, (2)

References

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