CVE-2015-0868: Unrestricted file upload vulnerability in Mrs

Q: How do I fix CVE-2015-0868?

bu2 bbs: upgrade to newer than 2.90. Exact commands for each OS are on this page.

Q: Is CVE-2015-0868 being exploited?

CVE-2015-0868 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-2015-0868 affect?

CVE-2015-0868 affects bu2 bbs. Severity is high (CVSS 7.5). Unrestricted file upload vulnerability in Mrs. Shiromuku Perl CGI shiromuku(bu2)BBS before 2.91 allows remote attackers to execute arbitrary code by uploading an executable file.

This month

HIGH 7.5UPGRADE

CVE-2015-0868 is a high-severity flaw (CVSS 7.5) affecting bu2 bbs. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unrestricted file upload vulnerability in Mrs. Shiromuku Perl CGI shiromuku(bu2)BBS before 2.91 allows remote attackers to execute arbitrary code by uploading an executable file.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	2.6% (top 15%)
CISA exploited list	No
Published	2015-02-01
Last modified	2026-06-17

Publisher (CNA): JPCERT/CC · Vendor: shiromuku

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

Am I affected?

Timeline

2015-02-01 15:59 UTCPublished CVE record published
2026-06-17 00:21 UTCUpdated Record last modified

shiromuku bu2 bbs UPGRADE

Affected: <= 2.90

Fixed in: newer than 2.90

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy bu2-bbs || rpm -q bu2-bbs || bu2-bbs --version

2. UPGRADE to newer than 2.90 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade bu2-bbs

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade bu2-bbs

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-2015-0868?

bu2 bbs: upgrade to newer than 2.90. Exact commands for each OS are on this page.

Is CVE-2015-0868 being exploited?

CVE-2015-0868 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-2015-0868 affect?

CVE-2015-0868 affects bu2 bbs. Severity is high (CVSS 7.5). Unrestricted file upload vulnerability in Mrs. Shiromuku Perl CGI shiromuku(bu2)BBS before 2.91 allows remote attackers to execute arbitrary code by uploading an executable file.

How urgent is CVE-2015-0868?

Priority 48/100. High severity

Software pages

Perl vulnerabilities

References

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