CVE-2015-2782: Buffer overflow in Open-source ARJ archiver 3.10.22 allows remote attackers to cause a denial of service (cras

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HIGH 7.5WATCHLISTMITIGATEMITIGATEDOWNGRADE

CVE-2015-2782 is a high-severity flaw (CVSS 7.5) affecting debian linux, fedora, arj archiver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in Open-source ARJ archiver 3.10.22 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted ARJ archive.

Why this priority

High severity
EPSS top 7%: very likely to be exploited
On your watchlist

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	5.8% (top 7%)
CISA exploited list	No
Weakness	CWE-119
Published	2015-04-08
Last modified	2026-06-17

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

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

Am I affected?

Timeline

2015-04-08 18:59 UTCPublished CVE record published
2026-06-17 00:24 UTCUpdated Record last modified

debian debian linux MITIGATE

Affected: 7.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.0

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.

fedoraproject fedora MITIGATE

Affected: 20 · 21 · 22

Fixed in: no fixed release known

Safe to downgrade to: a release before 20

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.

arj software arj archiver DOWNGRADE

Affected: 3.10.22

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.10.22

1. Check installed version

apt-cache policy arj-archiver || rpm -q arj-archiver || arj-archiver --version

2. No fixed release: DOWNGRADE to a release before 3.10.22 (Debian / Ubuntu)

apt-cache madison arj-archiver sudo apt install arj-archiver=<VERSION_BEFORE_3.10.22> sudo apt-mark hold arj-archiver

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

dnf --showduplicates list arj-archiver sudo dnf downgrade arj-archiver-<VERSION_BEFORE_3.10.22> sudo dnf versionlock add arj-archiver

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-2015-2782?

debian linux: mitigate or apply the listed mitigation; fedora: mitigate or apply the listed mitigation; arj archiver: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2015-2782 being exploited?

CVE-2015-2782 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-2015-2782 affect?

CVE-2015-2782 affects debian linux, fedora, arj archiver. Severity is high (CVSS 7.5). Buffer overflow in Open-source ARJ archiver 3.10.22 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a crafted ARJ archive.

How urgent is CVE-2015-2782?

Priority 55/100. High severity; EPSS top 7%: very likely to be exploited; On your watchlist

Software pages

Debian vulnerabilities

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References

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