CVE-2023-41102: An issue was discovered in the captive portal in OpenNDS before version 10.1.3

Q: How do I fix CVE-2023-41102?

opennds: upgrade to 10.1.3. Exact commands for each OS are on this page.

Q: Is CVE-2023-41102 being exploited?

CVE-2023-41102 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-2023-41102 affect?

CVE-2023-41102 affects opennds. Severity is high (CVSS 7.5). An issue was discovered in the captive portal in OpenNDS before version 10.1.3. It has multiple memory leaks due to not freeing up allocated memory. This may lead to a Denial-of-Service condition due to the consumption of all available memo

Q: How urgent is CVE-2023-41102?

Priority 47/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2023-41102 is a high-severity flaw (CVSS 7.5) affecting opennds. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in the captive portal in OpenNDS before version 10.1.3. It has multiple memory leaks due to not freeing up allocated memory. This may lead to a Denial-of-Service condition due to the consumption of all available memory. Affected OpenNDS before version 10.1.3 fixed in OpenWrt master and OpenWrt 23.05 on 23. November by updating OpenNDS to version 10.2.0.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-401, CWE-400
Published	2023-11-17
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: opennds

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

Am I affected?

Timeline

2023-11-17 06:15 UTCPublished CVE record published
2026-06-17 06:20 UTCUpdated Record last modified

opennds opennds UPGRADE

Affected: < 10.1.3

Fixed in: 10.1.3

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 10.1.3 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade opennds

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-2023-41102?

opennds: upgrade to 10.1.3. Exact commands for each OS are on this page.

Is CVE-2023-41102 being exploited?

CVE-2023-41102 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-2023-41102 affect?

CVE-2023-41102 affects opennds. Severity is high (CVSS 7.5). An issue was discovered in the captive portal in OpenNDS before version 10.1.3. It has multiple memory leaks due to not freeing up allocated memory. This may lead to a Denial-of-Service condition due to the consumption of all available memo

How urgent is CVE-2023-41102?

Priority 47/100. High severity; Remotely exploitable, no login, no user action

Software pages

OpenWrt vulnerabilities

Related CVEs

CVE-2024-25763 MEDIUM 5.5 DOWNGRADE openNDS 10.2.0 is vulnerable to Use-After-Free via /openNDS/src/auth.c.
CVE-2023-41101 CRITICAL 9.8 UPGRADE An issue was discovered in the captive portal in OpenNDS before version 10.1.3
CVE-2023-38323 CRITICAL 9.8 UPGRADE An issue was discovered in OpenNDS before 10.1.3
CVE-2023-38319 CRITICAL 9.8 UPGRADE An issue was discovered in OpenNDS before 10.1.3
CVE-2023-38318 CRITICAL 9.8 UPGRADE An issue was discovered in OpenNDS before 10.1.3

References

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