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| Vulnerability ID | VCID-qqpq-7rfp-r7cj |
| Aliases |
CVE-2025-47917
|
| Summary | Mbed TLS before 3.6.4 allows a use-after-free in certain situations of applications that are developed in accordance with the documentation. The function mbedtls_x509_string_to_names() takes a head argument that is documented as an output argument. The documentation does not suggest that the function will free that pointer; however, the function does call mbedtls_asn1_free_named_data_list() on that argument, which performs a deep free(). As a result, application code that uses this function (relying only on documented behavior) is likely to still hold pointers to the memory blocks that were freed, resulting in a high risk of use-after-free or double-free. In particular, the two sample programs x509/cert_write and x509/cert_req are affected (use-after-free if the san string contains more than one DN). |
| Status | Published |
| Exploitability | 2.0 |
| Weighted Severity | 8.8 |
| Risk | 10.0 |
| Affected and Fixed Packages | Package Details |
| CWE-416 | Use After Free |
| Reference id | Reference type | URL |
|---|---|---|
| https://api.first.org/data/v1/epss?cve=CVE-2025-47917 | ||
| https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-47917 | ||
| 1108791 | https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1108791 | |
| cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:* | https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:* | |
| CVE-2025-47917 | Exploit | https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/local/52427.c |
| CVE-2025-47917 | https://nvd.nist.gov/vuln/detail/CVE-2025-47917 | |
| mbedtls-security-advisory-2025-06-7.md | https://github.com/Mbed-TLS/mbedtls-docs/blob/main/security-advisories/mbedtls-security-advisory-2025-06-7.md | |
| security-advisories | https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/ |
| Data source | Exploit-DB |
|---|---|
| Date added | Sept. 16, 2025 |
| Description | Mbed TLS 3.6.4 - Use-After-Free |
| Ransomware campaign use | Unknown |
| Source publication date | Sept. 16, 2025 |
| Exploit type | local |
| Platform | multiple |
| Source update date | Sept. 16, 2025 |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Attack Vector (AV) | Attack Complexity (AC) | Privileges Required (PR) | User Interaction (UI) | Scope (S) | Confidentiality Impact (C) | Integrity Impact (I) | Availability Impact (A) |
|---|---|---|---|---|---|---|---|
network adjacent_network local physical |
low high |
none low high |
none required |
unchanged changed |
high low none |
high low none |
high low none |
| Percentile | 0.15357 |
| EPSS Score | 0.0005 |
| Published At | July 30, 2025, 12:55 p.m. |
| Date | Actor | Action | Source | VulnerableCode Version |
|---|---|---|---|---|
| 2025-07-31T08:34:18.024098+00:00 | Alpine Linux Importer | Import | https://secdb.alpinelinux.org/v3.22/main.json | 37.0.0 |