CVE-2007-1251: Format string vulnerability in the new_warning function in ntserv/warning.c for Netrek Vanilla Server 2.12.0,

This week

HIGH 9.3DOWNGRADE

CVE-2007-1251 is a high-severity flaw (CVSS 9.3) affecting netrek vanilla server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Format string vulnerability in the new_warning function in ntserv/warning.c for Netrek Vanilla Server 2.12.0, when EVENTLOG is enabled, allows remote attackers to cause a denial of service (crash) or execute arbitrary code via format string specifiers in the message handling.

Why this priority

Critical severity
EPSS top 6%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	9.3 (High)
EPSS exploit chance	6.5% (top 6%)
CISA exploited list	No
Weakness	CWE-134
Published	2007-03-03
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: netrek

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

Am I affected?

Timeline

2007-03-03 20:19 UTCPublished CVE record published
2026-06-16 22:37 UTCUpdated Record last modified

netrek netrek vanilla server DOWNGRADE

Affected: 2.12.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.12.0

1. Check installed version

apt-cache policy netrek-vanilla-server || rpm -q netrek-vanilla-server || netrek-vanilla-server --version

2. No fixed release: DOWNGRADE to a release before 2.12.0 (Debian / Ubuntu)

apt-cache madison netrek-vanilla-server sudo apt install netrek-vanilla-server=<VERSION_BEFORE_2.12.0> sudo apt-mark hold netrek-vanilla-server

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

dnf --showduplicates list netrek-vanilla-server sudo dnf downgrade netrek-vanilla-server-<VERSION_BEFORE_2.12.0> sudo dnf versionlock add netrek-vanilla-server

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: Netrek 2.12.0 - 'pmessage2()' Remote Limited Format String

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-2007-1251?

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

Is CVE-2007-1251 being exploited?

CVE-2007-1251 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-2007-1251 affect?

CVE-2007-1251 affects netrek vanilla server. Severity is high (CVSS 9.3). Format string vulnerability in the new_warning function in ntserv/warning.c for Netrek Vanilla Server 2.12.0, when EVENTLOG is enabled, allows remote attackers to cause a denial of service (crash) or execute arbitrary code via format string

How urgent is CVE-2007-1251?

Priority 61/100. Critical severity; EPSS top 6%: very likely to be exploited; Public exploit reference

References

← Back to latest CVEs