How severe is CVE-2023-41102?

CVE-2023-41102 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2023-41102 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-41102?

CVE-2023-41102 affects Opennds. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-41102?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-41102 published?

CVE-2023-41102 was published on 2023-11-17 and last updated on 2026-06-17.

CVE-2023-41102

CVE-2023-41102 is a high-severity vulnerability in Opennds with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-401.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-401
Affected product: Opennds
Published: 2023-11-17
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-41102?: 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.
How severe is CVE-2023-41102?: CVE-2023-41102 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2023-41102 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-41102?: CVE-2023-41102 affects Opennds. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-41102?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-41102 published?: CVE-2023-41102 was published on 2023-11-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:opennds:opennds:*:*:*:*:*:*:*:*

More vulnerabilities in Opennds

CVE-2023-38323 — Critical (CVSS 9.8): An issue was discovered in OpenNDS before 10.1.3. It fails to sanitize the status path script entry in the…
CVE-2023-38319 — Critical (CVSS 9.8): An issue was discovered in OpenNDS before 10.1.3. It fails to sanitize the FAS key entry in the configuration file,…
CVE-2023-38318 — Critical (CVSS 9.8): An issue was discovered in OpenNDS before 10.1.3. It fails to sanitize the gateway FQDN entry in the configuration…
CVE-2023-38317 — Critical (CVSS 9.8): An issue was discovered in OpenNDS before 10.1.3. It fails to sanitize the network interface name entry in the…
CVE-2023-41101 — Critical (CVSS 9.8): An issue was discovered in the captive portal in OpenNDS before version 10.1.3. get_query in http_microhttpd.c does not…
CVE-2024-25763 — Medium (CVSS 5.5): openNDS 10.2.0 is vulnerable to Use-After-Free via /openNDS/src/auth.c.

All CVEs affecting Opennds →

Other CWE-401 (Missing Release of Memory after Effective Lifetime) vulnerabilities

CVE-2026-46289 — Critical (CVSS 9.8): In the Linux kernel, the following vulnerability has been resolved: lib/scatterlist: fix length calculations in…
CVE-2022-0742 — Critical (CVSS 9.1): Memory leak in icmp6 implementation in Linux Kernel 5.13+ allows a remote attacker to DoS a host by making it go…
CVE-2024-25450 — High (CVSS 8.8): imlib2 v1.9.1 was discovered to mishandle memory allocation in the function init_imlib_fonts().
CVE-2023-33718 — High (CVSS 8.8): mp4v2 v2.1.3 was discovered to contain a memory leak via MP4File::ReadString() at mp4file_io.cpp
CVE-2021-40633 — High (CVSS 8.8): A memory leak (out-of-memory) in gif2rgb in util/gif2rgb.c in giflib 5.1.4 allows remote attackers trigger an out of…
CVE-2021-3492 — High (CVSS 8.8): Shiftfs, an out-of-tree stacking file system included in Ubuntu Linux kernels, did not properly handle faults occurring…

Browse all CWE-401 (Missing Release of Memory after Effective Lifetime) vulnerabilities →