CVE-2016-8390: An exploitable out of bounds write vulnerability exists in the parsing of ELF Section Headers of Hopper Disass

This month

HIGH 7.8DOWNGRADE

CVE-2016-8390 is a high-severity flaw (CVSS 7.8) affecting hopper disassembler. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An exploitable out of bounds write vulnerability exists in the parsing of ELF Section Headers of Hopper Disassembler 3.11.20. A specially crafted ELF file can cause attacker controlled pointer arithmetic resulting in a partially controlled out of bounds write. An attacker can craft an ELF file with specific section headers to trigger this vulnerability.

Why this priority

High severity

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

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.2% (top 32%)
CISA exploited list	No
Weakness	CWE-787
Published	2018-06-04
Last modified	2026-06-17

Publisher (CNA): Talos · Vendor: cryptic-apps

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

Am I affected?

Timeline

2018-06-04 19:29 UTCPublished CVE record published
2026-06-17 00:54 UTCUpdated Record last modified

cryptic-apps hopper disassembler DOWNGRADE

Affected: 3.11.20

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.11.20

1. Check installed version

apt-cache policy hopper-disassembler || rpm -q hopper-disassembler || hopper-disassembler --version

2. No fixed release: DOWNGRADE to a release before 3.11.20 (Debian / Ubuntu)

apt-cache madison hopper-disassembler sudo apt install hopper-disassembler=<VERSION_BEFORE_3.11.20> sudo apt-mark hold hopper-disassembler

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

dnf --showduplicates list hopper-disassembler sudo dnf downgrade hopper-disassembler-<VERSION_BEFORE_3.11.20> sudo dnf versionlock add hopper-disassembler

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-2016-8390?

hopper disassembler: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2016-8390 being exploited?

CVE-2016-8390 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-2016-8390 affect?

CVE-2016-8390 affects hopper disassembler. Severity is high (CVSS 7.8). An exploitable out of bounds write vulnerability exists in the parsing of ELF Section Headers of Hopper Disassembler 3.11.20. A specially crafted ELF file can cause attacker controlled pointer arithmetic resulting in a partially controlled

How urgent is CVE-2016-8390?

Priority 44/100. High severity

References

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