CVE-2025-66409

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.64% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 47.8% of scored records. A rank, not a probability.

NVD base score

2.7 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Analyzed. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2025-12-02 18:09Z9 MO AGO

Last updated

2025-12-02 18:46Z9 MO AGO

Reserved

2025-11-28

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Low (CVSS 2.7)

CNA CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U

Weaknesses

• CWE-125Out-of-bounds ReadBase

Data version

5.2

Document digest

d73f121e52220925c389a449acaba8e3bdaf6c48b63017d0f61673038973b1d6

• github.comhttps://github.com/espressif/esp-idf/security/advisories/GHSA-qhf9-vr2h-jh96x_refsource_CONFIRM
• github.comhttps://github.com/espressif/esp-idf/commit/075ed218cadb8088155521cd8a795d8a626519fbx_refsource_MISC
• github.comhttps://github.com/espressif/esp-idf/commit/2f788e59ee361eee230879ae2ec9cf5c893fe372x_refsource_MISC
• github.comhttps://github.com/espressif/esp-idf/commit/798029129a71c802cff0e75eb59f902bca8f1946x_refsource_MISC
• github.comhttps://github.com/espressif/esp-idf/commit/999710fccf95ae128fe51b5679d6b7c75c50d902x_refsource_MISC
• github.comhttps://github.com/espressif/esp-idf/commit/d5db5f60fc1dcfdd8cd3ee898fdefaa272988acex_refsource_MISC
• github.comhttps://github.com/espressif/esp-idf/commit/daeeba230327176b9627b1caa94acdc54065c4b7x_refsource_MISC