CVE-2007-2722: Unspecified vulnerability in NewzCrawler 1.8 allows remote attackers to cause a denial of service (application

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HIGH 7.8DOWNGRADE

CVE-2007-2722 is a high-severity flaw (CVSS 7.8) affecting newzcrawler. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unspecified vulnerability in NewzCrawler 1.8 allows remote attackers to cause a denial of service (application instability) via certain invalid strings in the URL attribute of an ENCLOSURE element, as demonstrated by a "%s" sequence, a "%Y" sequence, a "%%" sequence, and an "n," sequence.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.8 (High)
EPSS exploit chance	3.2% (top 12%)
CISA exploited list	No
Published	2007-05-16
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: newzcrawler

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

Am I affected?

Timeline

2007-05-16 22:30 UTCPublished CVE record published
2026-06-16 22:40 UTCUpdated Record last modified

newzcrawler newzcrawler DOWNGRADE

Affected: 1.8

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.8

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.8 (Debian / Ubuntu)

apt-cache madison newzcrawler sudo apt install newzcrawler=<VERSION_BEFORE_1.8> sudo apt-mark hold newzcrawler

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

dnf --showduplicates list newzcrawler sudo dnf downgrade newzcrawler-<VERSION_BEFORE_1.8> sudo dnf versionlock add newzcrawler

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: NewzCrawler 1.8 - invalid string Remote Denial of Service

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-2007-2722?

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

Is CVE-2007-2722 being exploited?

CVE-2007-2722 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-2007-2722 affect?

CVE-2007-2722 affects newzcrawler. Severity is high (CVSS 7.8). Unspecified vulnerability in NewzCrawler 1.8 allows remote attackers to cause a denial of service (application instability) via certain invalid strings in the URL attribute of an ENCLOSURE element, as demonstrated by a "%s" sequence, a "%Y"

How urgent is CVE-2007-2722?

Priority 54/100. High severity; Public exploit reference

References

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