CVE-2015-8836: Integer overflow in the isofs_real_read_zf function in isofs.c in FuseISO 20070708 might allow remote attacker

Q: How do I fix CVE-2015-8836?

fedora: mitigate or apply the listed mitigation; fuseiso: upgrade to newer than 20070708. Exact commands for each OS are on this page.

Q: Is CVE-2015-8836 being exploited?

CVE-2015-8836 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-2015-8836 affect?

CVE-2015-8836 affects fedora, fuseiso. Severity is high (CVSS 7.3). Integer overflow in the isofs_real_read_zf function in isofs.c in FuseISO 20070708 might allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a large ZF block size in an ISO f

Q: How urgent is CVE-2015-8836?

Priority 50/100. High severity; Public exploit reference

This month

HIGH 7.3MITIGATEUPGRADE

CVE-2015-8836 is a high-severity flaw (CVSS 7.3) affecting fedora, fuseiso. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Integer overflow in the isofs_real_read_zf function in isofs.c in FuseISO 20070708 might allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a large ZF block size in an ISO file, leading to a heap-based buffer overflow.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.3 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	1.8% (top 22%)
CISA exploited list	No
Weakness	CWE-119
Published	2016-03-30
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fedoraproject · fuseiso project

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

Am I affected?

Timeline

2016-03-30 10:59 UTCPublished CVE record published
2026-06-17 00:35 UTCUpdated Record last modified

fedoraproject fedora MITIGATE

Affected: 16 · 17

Fixed in: no fixed release known

Safe to downgrade to: a release before 16

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.

fuseiso project fuseiso UPGRADE

Affected: <= 20070708

Fixed in: newer than 20070708

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 20070708 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade fuseiso

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-2015-8836?

fedora: mitigate or apply the listed mitigation; fuseiso: upgrade to newer than 20070708. Exact commands for each OS are on this page.

Is CVE-2015-8836 being exploited?

CVE-2015-8836 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-2015-8836 affect?

CVE-2015-8836 affects fedora, fuseiso. Severity is high (CVSS 7.3). Integer overflow in the isofs_real_read_zf function in isofs.c in FuseISO 20070708 might allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a large ZF block size in an ISO f

How urgent is CVE-2015-8836?

Priority 50/100. High severity; Public exploit reference

Related CVEs

CVE-2023-42756 MEDIUM 4.4 UPGRADE MITIGATE A flaw was found in the Netfilter subsystem of the Linux kernel
CVE-2024-3056 HIGH 7.7 UPGRADE DOWNGRADE A flaw was found in Podman
CVE-2023-2462 MEDIUM 4.3 UPGRADE MITIGATE Inappropriate implementation in Prompts in Google Chrome prior to 113.0.5672.63 allowed a remote attacker to o
CVE-2023-2468 MEDIUM 4.3 UPGRADE MITIGATE Inappropriate implementation in PictureInPicture in Google Chrome prior to 113.0.5672.63 allowed a remote atta
CVE-2026-35093 HIGH 8.8 UPGRADE MITIGATE A flaw was found in libinput

References

← Back to latest CVEs