CVE-2019-17424: A stack-based buffer overflow in the processPrivilage() function in IOS/process-general.c in nipper-ng 0.11.10

This week

HIGH 7.8DOWNGRADE

CVE-2019-17424 is a high-severity flaw (CVSS 7.8) affecting nipper-ng. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A stack-based buffer overflow in the processPrivilage() function in IOS/process-general.c in nipper-ng 0.11.10 allows remote attackers (serving firewall configuration files) to achieve Remote Code Execution or Denial Of Service via a crafted file.

Why this priority

High severity
EPSS top 4%: very likely to be exploited
Public exploit reference

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	13.4% (top 4%)
CISA exploited list	No
Weakness	CWE-787
Published	2019-10-22
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: nipper-ng project

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

Am I affected?

Timeline

2019-10-22 13:15 UTCPublished CVE record published
2026-06-17 02:23 UTCUpdated Record last modified

nipper-ng project nipper-ng DOWNGRADE

Affected: 0.11.10

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.11.10

1. Check installed version

apt-cache policy nipper-ng || rpm -q nipper-ng || nipper-ng --version

2. No fixed release: DOWNGRADE to a release before 0.11.10 (Debian / Ubuntu)

apt-cache madison nipper-ng sudo apt install nipper-ng=<VERSION_BEFORE_0.11.10> sudo apt-mark hold nipper-ng

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

dnf --showduplicates list nipper-ng sudo dnf downgrade nipper-ng-<VERSION_BEFORE_0.11.10> sudo dnf versionlock add nipper-ng

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: nipper-ng 0.11.10 - Remote Buffer Overflow (PoC)

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-2019-17424?

nipper-ng: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-17424 being exploited?

CVE-2019-17424 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-2019-17424 affect?

CVE-2019-17424 affects nipper-ng. Severity is high (CVSS 7.8). A stack-based buffer overflow in the processPrivilage() function in IOS/process-general.c in nipper-ng 0.11.10 allows remote attackers (serving firewall configuration files) to achieve Remote Code Execution or Denial Of Service via a crafte

How urgent is CVE-2019-17424?

Priority 56/100. High severity; EPSS top 4%: very likely to be exploited; Public exploit reference

Software pages

iOS vulnerabilities

References

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