CVE-2024-49195
Mbed TLS 3.5.x through 3.6.x before 3.6.2 has a buffer underrun in pkwrite when writing an opaque...
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
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
9.8
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
- Record
CVE-2024-49195- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
EUVDEUVD-2024-43718
9.8
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
- Record
EUVD-2024-43718- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-24jq-7r79-4823
9.8
Mbed TLS 3.5.x through 3.6.x before 3.6.2 has a buffer underrun in pkwrite when writing an opaque...
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
- Record
GHSA-24jq-7r79-4823- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
NVD
9.8
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
- Record
CVE-2024-49195- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
OSVALPINE-CVE-2024-49195
9.8
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
- Record
ALPINE-CVE-2024-49195- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
OSV
9.8
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
- Record
CVE-2024-49195- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Show 4 moreShow less
OSVDEBIAN-CVE-2024-49195
9.8
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
- Record
DEBIAN-CVE-2024-49195- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2024-49195
9.8
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
- Record
UBUNTU-CVE-2024-49195- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVopenSUSE-SU-2024:14419-1 No score
libeverest-3.6.2-1.1 on GA media
These are all security issues fixed in the libeverest-3.6.2-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:14419-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2026:21144-1 No score
Security update for mbedtls
This update for mbedtls fixes the following issues:
Changes in mbedtls:
- Update to 3.6.6 (LTS maintenance update from 3.6.1); security fixes
accumulated across the 3.6.2-3.6.6 releases:
- CVE-2024-49195 (boo#1231708): buffer underrun in pkwrite when writing an opaque key pair
- CVE-2025-27809 (boo#1240051): certificate verification accepted arbitrary hostnames
- CVE-2025-27810 (boo#1240052): possible authentication bypass on failed memory allocation / hardware errors
- CVE-2025-47917 (boo#1246783): misleading memory management in mbedtls_x509_string_to_names()
- CVE-2025-48965 (boo#1246784): NULL pointer dereference after mbedtls_asn1_store_named_data()
- CVE-2025-49087 (boo#1246973): timing side channel in PKCS#7 padding removal
- CVE-2025-49600 (boo#1245808): unchecked return values in LMS verification allow signature bypass via fault injection
- CVE-2025-49601 (boo#1245809): out-of-bounds read in mbedtls_lms_import_public_key()
- CVE-2025-52496 (boo#1245810): race in AES-NI support detection can lead to AES key extraction or GCM forgery
- CVE-2025-52497 (boo#1245811): one-byte heap underflow when parsing PEM-encrypted material
- CVE-2025-54764 (boo#1252341): timing attacks in RSA operations
- CVE-2025-59438 (boo#1252454): padding-oracle attack via timing of cipher error reporting
- CVE-2026-25833: PSA RNG state duplicated across fork()
- CVE-2026-25834: TLS 1.3 HelloRetryRequest man-in-the-middle session-resumption downgrade
- CVE-2026-25835: RNG state duplicated when application/VM state is cloned
- Record
openSUSE-SU-2026:21144-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
mbedtlsAlpine:v3.20 |
before 3.6.2-r0 | 3.6.2-r0 |
mbedtlsAlpine:v3.21 |
before 3.6.2-r0 | 3.6.2-r0 |
mbedtlsAlpine:v3.22 |
before 3.6.2-r0 | 3.6.2-r0 |
mbedtlsAlpine:v3.23 |
before 3.6.2-r0 | 3.6.2-r0 |
mbedtlsAlpine:v3.24 |
before 3.6.2-r0 | 3.6.2-r0 |
mbedtls3Alpine:v3.24 |
before 3.6.2-r0 | 3.6.2-r0 |
mbedtlsDebian:13 |
before 3.6.2-1 | 3.6.2-1 |
mbedtlsDebian:14 |
before 3.6.2-1 | 3.6.2-1 |
mbedtlsopenSUSE:Tumbleweed |
before 3.6.2-1.1 | 3.6.2-1.1 |
mbedtlsopenSUSE:Leap 16.0 |
before 3.6.6-bp160.1.1 | 3.6.6-bp160.1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected | OSV | |
| affected | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-49195 is a critical vulnerability (CVSS 9.8) in Trustedfirmware Mbed Tls, published October 15, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.63%, the 50th percentile. Fixed in mbedtls 3.6.2-r0.
References
mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories
mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2024-10-1
nvd.nist.gov/vuln/detail/CVE-2024-49195
github.com/advisories/GHSA-24jq-7r79-4823
security.alpinelinux.org/vuln/CVE-2024-49195
github.com/CVEProject/cvelistV5/tree/main/cves/2024/49xxx/CVE-2024-49195.json
Show 31 moreShow less
security-tracker.debian.org/tracker/CVE-2024-49195
ubuntu.com/security/CVE-2024-49195
cve.org/CVERecord?id=CVE-2024-49195
lists.opensuse.org/archives/list/[email protected]/thread/A3W4NLZAUMYCYEICSKY7GDWV4KYHXVP2
suse.com/security/cve/CVE-2024-49195
bugzilla.suse.com/1231708
bugzilla.suse.com/1240051
bugzilla.suse.com/1240052
bugzilla.suse.com/1245808
bugzilla.suse.com/1245809
bugzilla.suse.com/1245810
bugzilla.suse.com/1245811
bugzilla.suse.com/1246783
bugzilla.suse.com/1246784
bugzilla.suse.com/1246973
bugzilla.suse.com/1252341
bugzilla.suse.com/1252454
suse.com/security/cve/CVE-2025-27809
suse.com/security/cve/CVE-2025-27810
suse.com/security/cve/CVE-2025-47917
suse.com/security/cve/CVE-2025-48965
suse.com/security/cve/CVE-2025-49087
suse.com/security/cve/CVE-2025-49600
suse.com/security/cve/CVE-2025-49601
suse.com/security/cve/CVE-2025-52496
suse.com/security/cve/CVE-2025-52497
suse.com/security/cve/CVE-2025-54764
suse.com/security/cve/CVE-2025-59438
suse.com/security/cve/CVE-2026-25833
suse.com/security/cve/CVE-2026-25834
suse.com/security/cve/CVE-2026-25835