# OPENSUSE-SU-2026:21144-1: mbedtls security update

OPENSUSE-SU-2026:21144-1, released June 22, 2026, fixes 15 CVEs in mbedtls (version 3.6.6-bp160.1.1). None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/linux/opensuse-su-2026-21144-1
- Platform: Linux
- Released: Jun 22, 2026
- Priority: Urgent (Closes CVE-2025-47917, rated Critical)
- CVEs: 15, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://osv.dev/vulnerability/openSUSE-SU-2026:21144-1

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [mbedtls](https://patchblox.com/security/data/product/linux/mbedtls.md) | opensuse-leap 16.0 | 3.6.6-bp160.1.1 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2025-47917](https://patchblox.com/security/data/cve/CVE-2025-47917.md) | Urgent | mbedtls: mbedtls - security update | 9.8 | 0.0244 |  |
| [CVE-2024-49195](https://patchblox.com/security/data/cve/CVE-2024-49195.md) | Urgent | mbedtls: Mbed TLS 3.5.x through 3.6.x before 3.6.2 has a buffer underrun in pkwrite when writing an opaque key pair | 9.8 | 0.0063 |  |
| [CVE-2025-48965](https://patchblox.com/security/data/cve/CVE-2025-48965.md) | High | libmbedx509-1t64: Mbed TLS before 3.6.4 has a NULL pointer dereference because mbedtls_asn1_store_named_data can trigger conflicting da... | 7.5 | 0.0057 |  |
| [CVE-2026-25833](https://patchblox.com/security/data/cve/CVE-2026-25833.md) | High | mbedtls: Mbed TLS 3.5.0 to 3.6.5 fixed in 3.6.6 and 4.1.0 has a buffer overflow in the x509_inet_pton_ipv6() function | 7.5 | 0.0032 |  |
| [CVE-2025-52496](https://patchblox.com/security/data/cve/CVE-2025-52496.md) | High | Mbed TLS before 3.6.4 has a race condition in AESNI detection if certain compiler optimizations occur. An attacker may be able to extract an AES key from a multithreaded program, or perform a GCM forgery. | 7.8 | 0.0021 |  |
| [CVE-2026-25835](https://patchblox.com/security/data/cve/CVE-2026-25835.md) | High | mbedtls: Mbed TLS before 3.6.6 and TF-PSA-Crypto before 1.1.0 misuse seeds in a Pseudo-Random Number Generator (PRNG). | 7.7 | 0.0018 |  |
| [CVE-2025-49087](https://patchblox.com/security/data/cve/CVE-2025-49087.md) | Routine | mbedtls: In Mbed TLS 3.6.1 through 3.6.3 before 3.6.4, a timing discrepancy in block cipher padding removal allows an attacker... | 3.7 | 0.0047 |  |
| [CVE-2025-52497](https://patchblox.com/security/data/cve/CVE-2025-52497.md) | Routine | mbedtls: Mbed TLS before 3.6.4 has a PEM parsing one-byte heap-based buffer underflow, in mbedtls_pem_read_buffer and two mbed... | 4.8 | 0.0033 |  |
| [CVE-2025-49601](https://patchblox.com/security/data/cve/CVE-2025-49601.md) | Routine | mbedtls: In MbedTLS 3.3.0 before 3.6.4, mbedtls_lms_import_public_key does not check that the input buffer is at least 4 bytes... | 6.5 | 0.0032 |  |
| [CVE-2025-27810](https://patchblox.com/security/data/cve/CVE-2025-27810.md) | Routine | mbedtls: Mbed TLS before 2.28.10 and 3.x before 3.6.3, in some cases of failed memory allocation or hardware errors, uses unin... | 4.8 | 0.0030 |  |
| [CVE-2025-59438](https://patchblox.com/security/data/cve/CVE-2025-59438.md) | Routine | mbedtls: Mbed TLS through 3.6.4 has an Observable Timing Discrepancy. | 5.3 | 0.0026 |  |
| [CVE-2025-54764](https://patchblox.com/security/data/cve/CVE-2025-54764.md) | Routine | mbedtls: Mbed TLS before 3.6.5 allows a local timing attack against certain RSA operations, and direct calls to mbedtls_mpi_mo... | 6.2 | 0.0022 |  |
| [CVE-2025-27809](https://patchblox.com/security/data/cve/CVE-2025-27809.md) | Routine | mbedtls: Mbed TLS before 2.28.10 and 3.x before 3.6.3, on the client side, accepts servers that have trusted certificates for... | 5.4 | 0.0020 |  |
| [CVE-2025-49600](https://patchblox.com/security/data/cve/CVE-2025-49600.md) | Routine | mbedtls: In MbedTLS 3.3.0 before 3.6.4, mbedtls_lms_verify may accept invalid signatures if hash computation fails and interna... | 4.9 | 0.0016 |  |
| [CVE-2026-25834](https://patchblox.com/security/data/cve/CVE-2026-25834.md) | Routine | mbedtls: Mbed TLS v3.3.0 up to 3.6.5 and 4.0.0 allows Algorithm Downgrade. | 6.5 | 0.0014 |  |

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Data as of 2026-11-09T13:31:49Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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