CVE-2017-1000472: The ZipCommon::isValidPath() function in Zip/src/ZipCommon.cpp in POCO C++ Libraries before 1.8 does not prope

Q: How do I fix CVE-2017-1000472?

poco: upgrade to 1.8; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2017-1000472 being exploited?

CVE-2017-1000472 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-2017-1000472 affect?

CVE-2017-1000472 affects poco, debian linux. Severity is medium (CVSS 6.5). The ZipCommon::isValidPath() function in Zip/src/ZipCommon.cpp in POCO C++ Libraries before 1.8 does not properly restrict the filename value in the ZIP header, which allows attackers to conduct absolute path traversal attacks during the ZI

Q: How urgent is CVE-2017-1000472?

Priority 52/100. Public exploit reference; On your watchlist

This month

MEDIUM 6.5WATCHLISTUPGRADEMITIGATE

CVE-2017-1000472 is a medium-severity flaw (CVSS 6.5) affecting poco, debian linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The ZipCommon::isValidPath() function in Zip/src/ZipCommon.cpp in POCO C++ Libraries before 1.8 does not properly restrict the filename value in the ZIP header, which allows attackers to conduct absolute path traversal attacks during the ZIP decompression, and possibly create or overwrite arbitrary files, via a crafted ZIP file, related to a "file path injection vulnerability".

Why this priority

Public exploit reference
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Weakness	CWE-22
Published	2018-01-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: debian · pocoproject

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-01-03 20:29 UTCPublished CVE record published
2026-06-17 00:59 UTCUpdated Record last modified

pocoproject poco UPGRADE

Affected: < 1.8

Fixed in: 1.8

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.8 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade poco

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade poco

Note

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

debian debian linux MITIGATE

Affected: 8.0 · 9.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2017-1000472?

poco: upgrade to 1.8; debian linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-1000472 being exploited?

CVE-2017-1000472 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-2017-1000472 affect?

CVE-2017-1000472 affects poco, debian linux. Severity is medium (CVSS 6.5). The ZipCommon::isValidPath() function in Zip/src/ZipCommon.cpp in POCO C++ Libraries before 1.8 does not properly restrict the filename value in the ZIP header, which allows attackers to conduct absolute path traversal attacks during the ZI

How urgent is CVE-2017-1000472?

Priority 52/100. Public exploit reference; On your watchlist

Software pages

Debian vulnerabilities

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References

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