CVE-2026-45160

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Source
https://cve.org/CVERecord?id=CVE-2026-45160
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45160.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-45160
Aliases
  • GHSA-g764-gwc3-75m5
Published
2026-06-10T00:26:34.381Z
Modified
2026-07-08T08:09:37.985678937Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
ESF-IDF: Out-of-bounds Read in lwIP DHCP Server Option Parser
Details

ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.2.7, 5.3.5, 5.4.4, 5.5.4, and 6.0.1, an out-of-bounds read flaw exists in the DHCP server option parser (parse_options() in components/lwip/apps/dhcpserver/dhcpserver.c) shipped with ESP-IDF's lwIP component. The parser walks the BOOTP/DHCP options field without validating that each option's length byte and declared payload length stay within the received packet buffer. A crafted DHCP request can cause the parser to read past the end of the options buffer into adjacent heap memory. The issue affects the DHCP server used by ESP-IDF's SoftAP and any configuration where the device runs as a DHCP server on a local network. This issue has been patched in versions 5.2.8, 5.3.6, 5.4.5, 5.5.5, and 6.0.2.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45160.json",
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-125"
    ]
}
References

Affected packages

Git / github.com/espressif/esp-idf

Affected ranges

Type
GIT
Repo
https://github.com/espressif/esp-idf
Events
Introduced
808b73fe9acf364b89e705234c1960ee3beaf295
Fixed
2bf4dd12002dbae60a4b21abff010ecb2b8ee82b
Fixed
2da2db43fd7e0bcff9e7b95f54f388296bb6f911
Fixed
8b4b5d5301815198d177974ffc24848f47748248
Fixed
9f713dbc94982d917f2d12964b233cd9efa4aeba
Fixed
d51b1076092487e533eadf8b48c9c8579d3a6712
Fixed
fba5f995436a3e3139f768b6d8f1a74d5ce1d318
Database specific 
{
    "source": [
        "CPE_STRING",
        "REFERENCES"
    ],
    "cpe": [
        "cpe:2.3:a:espressif:esp-idf:5.2.7:*:*:*:*:*:*:*",
        "cpe:2.3:a:espressif:esp-idf:5.3.5:*:*:*:*:*:*:*",
        "cpe:2.3:a:espressif:esp-idf:5.4.4:*:*:*:*:*:*:*",
        "cpe:2.3:a:espressif:esp-idf:5.5.4:*:*:*:*:*:*:*",
        "cpe:2.3:a:espressif:esp-idf:6.0.1:*:*:*:*:*:*:*"
    ],
    "extracted_events": [
        {
            "introduced": "5.2.7"
        },
        {
            "last_affected": "5.2.7"
        },
        {
            "introduced": "5.3.5"
        },
        {
            "last_affected": "5.3.5"
        },
        {
            "introduced": "5.4.4"
        },
        {
            "last_affected": "5.4.4"
        },
        {
            "introduced": "5.5.4"
        },
        {
            "last_affected": "5.5.4"
        },
        {
            "introduced": "6.0.1"
        },
        {
            "last_affected": "6.0.1"
        }
    ]
}

Affected versions

5.*
5.2.7
5.3.5
5.4.4
5.5.4
6.*
6.0.1
= 5.*
= 5.2.7
= 5.3.5
= 5.4.4
= 5.5.4
= 6.*
= 6.0.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45160.json"