CVE-2021-24119
Reported by mitre · Published July 14, 2021
In Trusted Firmware Mbed TLS 2.24.0, a side-channel vulnerability in base64 PEM file decoding allows system-level (administrator) attackers to obtain information about secret RSA keys via a controlled-channel and side-channel attack on software running in isolated environments that can be single stepped, especially Intel SGX.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| mbed_tls | arm | 2.26.0 |
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
| n/a | n/a | * |
| arch | mbedtls | 0 |
Timeline
- Jul 14, 2021 CVE Published
- Jul 15, 2021 EPSS Score (30 in total, the first dated here)
- Nov 3, 2025 CVE Updated
- Apr 4, 2026 Security Advisory (4 in total, the first dated here)
- Aug 16, 2026 Coalition ESS Score
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2021-24119
vulnetix vdb fixes CVE-2021-24119
Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/CVE-2021-24119/fixes/registry"
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References
- FEDORA-2021-10bfc067d1 vendor-advisory
- FEDORA-2021-165969af24 vendor-advisory
- [debian-lts-announce] 20211123 [SECURITY] [DLA 2826-1] mbedtls security update mailing-list
- [debian-lts-announce] 20221225 [SECURITY] [DLA 3249-1] mbedtls security update mailing-list
- https://lists.debian.org/debian-lts-announce/2025/06/msg00034.html advisory