CVE-2007-0244: pptpgre.c in PoPToP Point to Point Tunneling Server (pptpd) before 1.3.4 allows remote attackers to cause a de

Q: How do I fix CVE-2007-0244?

pptp server: upgrade to newer than 1.3.3. Exact commands for each OS are on this page.

Q: Is CVE-2007-0244 being exploited?

CVE-2007-0244 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-2007-0244 affect?

CVE-2007-0244 affects pptp server. Severity is medium (CVSS 5.0). pptpgre.c in PoPToP Point to Point Tunneling Server (pptpd) before 1.3.4 allows remote attackers to cause a denial of service (PPTP connection tear-down) via (1) GRE packets with out-of-order sequence numbers or (2) certain GRE packets that

Q: How urgent is CVE-2007-0244?

Priority 38/100. No elevated risk signals yet.

Routine

MEDIUM 5.0UPGRADE

CVE-2007-0244 is a medium-severity flaw (CVSS 5.0) affecting pptp server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

pptpgre.c in PoPToP Point to Point Tunneling Server (pptpd) before 1.3.4 allows remote attackers to cause a denial of service (PPTP connection tear-down) via (1) GRE packets with out-of-order sequence numbers or (2) certain GRE packets that are processed using a wrong pointer and improperly dequeued.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.3% (top 17%)
CISA exploited list	No
Published	2007-05-11
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: poptop

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

Am I affected?

Timeline

2007-05-11 04:19 UTCPublished CVE record published
2026-06-16 22:35 UTCUpdated Record last modified

poptop pptp server UPGRADE

Affected: <= 1.3.3

Fixed in: newer than 1.3.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy pptp-server || rpm -q pptp-server || pptp-server --version

2. UPGRADE to newer than 1.3.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade pptp-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pptp-server

Note

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

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-2007-0244?

pptp server: upgrade to newer than 1.3.3. Exact commands for each OS are on this page.

Is CVE-2007-0244 being exploited?

CVE-2007-0244 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-2007-0244 affect?

CVE-2007-0244 affects pptp server. Severity is medium (CVSS 5.0). pptpgre.c in PoPToP Point to Point Tunneling Server (pptpd) before 1.3.4 allows remote attackers to cause a denial of service (PPTP connection tear-down) via (1) GRE packets with out-of-order sequence numbers or (2) certain GRE packets that

How urgent is CVE-2007-0244?

Priority 38/100. No elevated risk signals yet.

Related CVEs

CVE-2003-1455 HIGH 7.2 DOWNGRADE Multiple buffer overflows in the launch_bcrelay function in pptpctrl.c in PoPToP 1.1.4-b1 through PoPToP 1.1.4
CVE-2003-0213 HIGH 7.5 DOWNGRADE ctrlpacket.c in PoPToP PPTP server before 1.1.4-b3 allows remote attackers to cause a denial of service via a

References

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