CVE-2014-0487: APT before 1.0.9 does not verify downloaded files if they have been modified as indicated using the If-Modifie

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HIGH 7.5WATCHLISTDOWNGRADE

CVE-2014-0487 is a high-severity flaw (CVSS 7.5) affecting advanced package tool. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

APT before 1.0.9 does not verify downloaded files if they have been modified as indicated using the If-Modified-Since header, which has unspecified impact and attack vectors.

Why this priority

High severity
On your watchlist

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.9% (top 21%)
CISA exploited list	No
Published	2014-11-03
Last modified	2026-06-17

Publisher (CNA): Debian GNU/Linux · Vendor: debian

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

Am I affected?

Timeline

2014-11-03 22:55 UTCPublished CVE record published
2026-06-17 00:03 UTCUpdated Record last modified

debian advanced package tool DOWNGRADE

Affected: 1.0.3 · 1.0.7

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.3

1. Check installed version

apt-cache policy advanced-package-tool || rpm -q advanced-package-tool || advanced-package-tool --version

2. No fixed release: DOWNGRADE to a release before 1.0.3 (Debian / Ubuntu)

apt-cache madison advanced-package-tool sudo apt install advanced-package-tool=<VERSION_BEFORE_1.0.3> sudo apt-mark hold advanced-package-tool

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

dnf --showduplicates list advanced-package-tool sudo dnf downgrade advanced-package-tool-<VERSION_BEFORE_1.0.3> sudo dnf versionlock add advanced-package-tool

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.

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-2014-0487?

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

Is CVE-2014-0487 being exploited?

CVE-2014-0487 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-2014-0487 affect?

CVE-2014-0487 affects advanced package tool. Severity is high (CVSS 7.5). APT before 1.0.9 does not verify downloaded files if they have been modified as indicated using the If-Modified-Since header, which has unspecified impact and attack vectors.

How urgent is CVE-2014-0487?

Priority 51/100. High severity; On your watchlist

Software pages

Debian vulnerabilities

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References

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