CVE-2018-25268: LanSpy 2.0.1.159 contains a local buffer overflow vulnerability that allows attackers to overwrite the instruc

Routine

HIGH 8.4DOWNGRADE

CVE-2018-25268 is a high-severity flaw (CVSS 8.4) affecting lanspy. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

LanSpy 2.0.1.159 contains a local buffer overflow vulnerability that allows attackers to overwrite the instruction pointer by supplying oversized input to the scan field. Attackers can craft a payload with 688 bytes of padding followed by 4 bytes of controlled data to crash the application or potentially achieve code execution.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.4 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 90%)
CISA exploited list	No
Weakness	CWE-787
Published	2026-04-22
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: lizardsystems

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

Am I affected?

Timeline

2026-04-22 16:16 UTCPublished CVE record published
2026-06-17 01:55 UTCUpdated Record last modified

lizardsystems lanspy DOWNGRADE

Affected: 2.0.1.159

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.0.1.159

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.0.1.159 (Debian / Ubuntu)

apt-cache madison lanspy sudo apt install lanspy=<VERSION_BEFORE_2.0.1.159> sudo apt-mark hold lanspy

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

dnf --showduplicates list lanspy sudo dnf downgrade lanspy-<VERSION_BEFORE_2.0.1.159> sudo dnf versionlock add lanspy

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-2018-25268?

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

Is CVE-2018-25268 being exploited?

CVE-2018-25268 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-2018-25268 affect?

CVE-2018-25268 affects lanspy. Severity is high (CVSS 8.4). LanSpy 2.0.1.159 contains a local buffer overflow vulnerability that allows attackers to overwrite the instruction pointer by supplying oversized input to the scan field. Attackers can craft a payload with 688 bytes of padding followed by 4

How urgent is CVE-2018-25268?

Priority 37/100. High severity; Public exploit reference

Related CVEs

CVE-2018-25265 HIGH 8.4 UPGRADE LanSpy 2.0.1.159 contains a local buffer overflow vulnerability in the scan section that allows local attacker

References

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