CVE-2007-1904: Directory traversal vulnerability in AOL Instant Messenger (AIM) 5.9 and earlier, and ICQ 5.1 and probably ear

Q: How do I fix CVE-2007-1904?

icq: upgrade to newer than 5.1; instant messenger: upgrade to newer than 5.9.3861. Exact commands for each OS are on this page.

Q: Is CVE-2007-1904 being exploited?

CVE-2007-1904 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-2007-1904 affect?

CVE-2007-1904 affects icq, instant messenger. Severity is medium (CVSS 4.3). Directory traversal vulnerability in AOL Instant Messenger (AIM) 5.9 and earlier, and ICQ 5.1 and probably earlier, allows user-assisted remote attackers to write files to arbitrary locations via a .. (dot dot) in a filename in a file trans

Q: How urgent is CVE-2007-1904?

Priority 38/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADEUPGRADE

CVE-2007-1904 is a medium-severity flaw (CVSS 4.3) affecting icq, instant messenger. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Directory traversal vulnerability in AOL Instant Messenger (AIM) 5.9 and earlier, and ICQ 5.1 and probably earlier, allows user-assisted remote attackers to write files to arbitrary locations via a .. (dot dot) in a filename in a file transfer operation.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
EPSS exploit chance	3.7% (top 10%)
CISA exploited list	No
Published	2007-04-10
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: aol

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

Am I affected?

Timeline

2007-04-10 23:19 UTCPublished CVE record published
2026-06-16 22:38 UTCUpdated Record last modified

aol icq UPGRADE

Affected: <= 5.1

Fixed in: newer than 5.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 5.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade icq

Note

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

aol instant messenger UPGRADE

Affected: <= 5.9.3861

Fixed in: newer than 5.9.3861

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy instant-messenger || rpm -q instant-messenger || instant-messenger --version

2. UPGRADE to newer than 5.9.3861 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade instant-messenger

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade instant-messenger

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-2007-1904?

icq: upgrade to newer than 5.1; instant messenger: upgrade to newer than 5.9.3861. Exact commands for each OS are on this page.

Is CVE-2007-1904 being exploited?

CVE-2007-1904 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-2007-1904 affect?

CVE-2007-1904 affects icq, instant messenger. Severity is medium (CVSS 4.3). Directory traversal vulnerability in AOL Instant Messenger (AIM) 5.9 and earlier, and ICQ 5.1 and probably earlier, allows user-assisted remote attackers to write files to arbitrary locations via a .. (dot dot) in a filename in a file trans

How urgent is CVE-2007-1904?

Priority 38/100. No elevated risk signals yet.

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References

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