CVE-2026-24455
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.
Summary
CVE-2026-24455 is a high-severity Cleartext Transmission of Sensitive Information (CWE-319) vulnerability in Cisa (inferred from references). Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Network Sniffing (T1040); ranked at the 15th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to SC-8 (Transmission Confidentiality and Integrity) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2026-24455 is a vulnerability in the embedded web interface of the device, where authentication relies on HTTP Basic Authentication without support for HTTPS/TLS. This configuration results in traffic that is encoded but not encrypted, exposing user credentials to passive interception. The flaw is cataloged under CWE-319 (Cleartext Transmission of Sensitive Information) and carries a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N), indicating high severity due to network accessibility and significant confidentiality impact.
Attackers with access to the same network as the device can exploit this vulnerability through passive network interception, such as via packet sniffing, to capture transmitted credentials without requiring privileges, user interaction, or active disruption. Successful exploitation enables unauthorized access to the web interface using stolen credentials, potentially leading to further compromise depending on the device's privileges and functions.
The CISA ICS advisory ICSA-26-050-03 addresses this vulnerability, with full details available at https://www.cisagov.github.io/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-050-03.json and https://www.cisa.gov/news-events/ics-advisories/icsa-26-050-03. Practitioners should consult these sources for recommended mitigations, such as applying patches or network segmentation if available.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-8308
Vulnerability Data
The embedded web interface of the device does not support HTTPS/TLS for authentication and uses HTTP Basic Authentication. Traffic is encoded but not encrypted, exposing user credentials to passive interception by attackers on the same network.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
SC-8 directly requires protecting confidentiality of transmitted information, which structurally eliminates cleartext transmission of sensitive data.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Encryption of data-in-transit directly prevents cleartext transmission while the control also addresses integrity and availability.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Specifying encryption and other security technology for network services prevents transmission of sensitive information in cleartext over potentially untrusted channels.
Mandating cryptographic protection and stronger authentication on public networks stops the transmission of plaintext sensitive information.
Specifying communications-security requirements and secure remote-access methods (including encryption expectations) prevents the transmission of sensitive data in cleartext over home or public networks.
Armoured conduits, electromagnetic shielding and locked enclosures make passive eavesdropping on unencrypted traffic traversing the cables more difficult, mitigating exposure of sensitive data in transit.