CVE-Katalog
CVE-2026-54875
Issue summary: A non-constant-time optimized implementation of scalar point multiplication is used for SM2 private key operations on ARM64 and RISC-V platforms. Impact summary: An attacker able to me
- Schweregrad
- High · CVSS 8.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.29% · Oct 22, 2026
Issue summary: A non-constant-time optimized implementation of scalar point multiplication is used for SM2 private key operations on ARM64 and RISC-V platforms. Impact summary: An attacker able to measure the time taken by, or to observe the cache-line access pattern of SM2 signing or decryption on an affected platform can learn information about the secret scalar. CWE: CWE-208: Observable Timing Discrepancy Description: On ARM64 and RISC-V processors, the SM2 curve uses an optimized scalar multiplication implementation whose conditional branches and table look ups are chosen according to the bits of the secret scalar. The execution time and the cache-access pattern therefore depend on the long-term private key (during SM2 decryption) or the per-signature nonce (during SM2 signature generation), forming a timing and cache side-channel. FIPS Impact: no SM2 is not a FIPS algorithm and the optimized SM2 implementation is not part of the FIPS module. OpenSSL 4.0, 3.6, 3.5 and 3.4 are vulnerable to this issue on AArch64 and RISC-V. OpenSSL 3.0, 1.1.1 and 1.0.2 are not affected by this issue. OpenSSL 4.0 users should upgrade to OpenSSL 4.0.3. OpenSSL 3.6 users should upgrade to OpenSSL 3.6.5. OpenSSL 3.5 users should upgrade to OpenSSL 3.5.9. OpenSSL 3.4 users should upgrade to OpenSSL 3.4.8. This issue was reported on 2 May 2026 by Abhinav Agarwal. It was independently reported on 6 June 2026 by Feng Xue. The fix was developed by Igor Ustinov. -- cut (non-publishing metadata for internal use) -- Reported by: Abhinav Agarwal, Feng Xue Fixed by: Igor Ustinov
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | openssl | sid | 3.6.5-1 | fixed |
| Debian | openssl | forky | 3.6.5-1 | fixed |
| Debian | openssl | trixie | 3.5.7-1~deb13u2 | vulnerable |
| Debian | openssl | trixie-security | 3.5.7-1~deb13u3 | fixed |
| Debian | openssl | bookworm | 3.0.20-1~deb12u2 | not affected |
| Debian | openssl | bookworm-security | 3.0.22-1~deb12u1 | not affected |
| Ubuntu | openssl | noble | 3.0.13-0ubuntu3.16 | fixed |
| Ubuntu | libssl-dev | noble | 3.0.13-0ubuntu3.16 | fixed |
| Ubuntu | libssl-doc | noble | 3.0.13-0ubuntu3.16 | fixed |
| Ubuntu | libssl3t64 | noble | 3.0.13-0ubuntu3.16 | fixed |
| Cpe | openssl | Not reported | 4.0.3 | fixed |
| Alpine | openssl | 3.21 | 3.3.7-r2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | openssl | source | sid | 3.6.5-1 | not yet assigned | Not reported | Not reported |
| Debian | openssl | source | forky | 3.6.5-1 | not yet assigned | Not reported | Not reported |
| Debian | openssl | source | trixie | 3.5.7-1~deb13u3 | not yet assigned | Not reported | Not reported |
| Debian | openssl | source | bookworm | Not affected | unimportant | Not reported | Not reported |
| Ubuntu | openssl | deb | noble | 3.0.13-0ubuntu3.16 | Not reported | Not reported | Not reported |
| Ubuntu | libssl-dev | deb | noble | 3.0.13-0ubuntu3.16 | Not reported | Not reported | Not reported |
| Ubuntu | libssl-doc | deb | noble | 3.0.13-0ubuntu3.16 | Not reported | Not reported | Not reported |
| Ubuntu | libssl3t64 | deb | noble | 3.0.13-0ubuntu3.16 | Not reported | Not reported | Not reported |
| Cpe | openssl | cpe | Not reported | 4.0.3 | Not reported | NVD-CVE-2026-54875 | Not reported |
| Alpine | openssl | apk | 3.21 | 3.3.7-r2 | Not reported | ALPINE-CVE-2026-54875 | Not reported |
OpenFactory catalog packages
[Debian 13 (Trixie)]
- [libssl3t64]Betroffen
Quellpaket: [openssl]
Details (6)
3.5.6-1~deb13u2· amd64 · trixieBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.6-1~deb13u2· arm64 · trixieBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.6-1~deb13u2· amd64 · trixie-security · Historical versionBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.7-1~deb13u2· amd64 · trixie-security · Historical versionBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.7-1~deb13u2· arm64 · trixie-securityBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.7-1~deb13u3· amd64 · trixie-securityBehoben · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
- [libssl-dev]Betroffen
Quellpaket: [openssl]
Details (6)
3.5.6-1~deb13u2· amd64 · trixieBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.6-1~deb13u2· arm64 · trixieBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.6-1~deb13u2· amd64 · trixie-security · Historical versionBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.7-1~deb13u2· amd64 · trixie-security · Historical versionBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.7-1~deb13u2· arm64 · trixie-securityBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.7-1~deb13u3· amd64 · trixie-securityBehoben · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
- [libssl-doc]Betroffen
Quellpaket: [openssl]
Details (6)
3.5.6-1~deb13u2· all · trixieBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.6-1~deb13u2· all · trixieBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.6-1~deb13u2· all · trixie-security · Historical versionBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.7-1~deb13u2· all · trixie-security · Historical versionBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.7-1~deb13u2· all · trixie-securityBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.7-1~deb13u3· all · trixie-securityBehoben · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
- [openssl]Betroffen
Details (6)
3.5.6-1~deb13u2· amd64 · trixieBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.6-1~deb13u2· arm64 · trixieBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.6-1~deb13u2· amd64 · trixie-security · Historical versionBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.7-1~deb13u2· amd64 · trixie-security · Historical versionBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.7-1~deb13u2· arm64 · trixie-securityBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.7-1~deb13u3· amd64 · trixie-securityBehoben · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
- [openssl-provider-fips]Betroffen
Quellpaket: [openssl]
Details (6)
3.5.6-1~deb13u2· amd64 · trixieBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.6-1~deb13u2· arm64 · trixieBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.6-1~deb13u2· amd64 · trixie-security · Historical versionBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.7-1~deb13u2· amd64 · trixie-security · Historical versionBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.7-1~deb13u2· arm64 · trixie-securityBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.7-1~deb13u3· amd64 · trixie-securityBehoben · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
- [openssl-provider-legacy]Betroffen
Quellpaket: [openssl]
Details (6)
3.5.6-1~deb13u2· amd64 · trixieBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.6-1~deb13u2· arm64 · trixieBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.6-1~deb13u2· amd64 · trixie-security · Historical versionBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.7-1~deb13u2· amd64 · trixie-security · Historical versionBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.7-1~deb13u2· arm64 · trixie-securityBetroffen · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
3.5.7-1~deb13u3· amd64 · trixie-securityBehoben · Behoben:
3.5.7-1~deb13u3nvd · openssl · debian · 13
[Debian 12 (Bookworm)]
- [libssl3]Nicht betroffen
Quellpaket: [openssl]
Details (6)
3.0.20-1~deb12u2· amd64 · bookwormNicht betroffen
nvd · openssl · debian · bookworm
3.0.20-1~deb12u2· arm64 · bookwormNicht betroffen
nvd · openssl · debian · bookworm
3.0.20-1~deb12u2· amd64 · bookworm-securityNicht betroffen
nvd · openssl · debian · bookworm
3.0.20-1~deb12u2· arm64 · bookworm-securityNicht betroffen
nvd · openssl · debian · bookworm
3.0.17-1~deb12u2· amd64 · bookworm-updatesNicht betroffen
nvd · openssl · debian · bookworm
3.0.17-1~deb12u2· arm64 · bookworm-updatesNicht betroffen
nvd · openssl · debian · bookworm
- [libssl-dev]Nicht betroffen
Quellpaket: [openssl]
Details (6)
3.0.20-1~deb12u2· amd64 · bookwormNicht betroffen
nvd · openssl · debian · bookworm
3.0.20-1~deb12u2· arm64 · bookwormNicht betroffen
nvd · openssl · debian · bookworm
3.0.20-1~deb12u2· amd64 · bookworm-securityNicht betroffen
nvd · openssl · debian · bookworm
3.0.20-1~deb12u2· arm64 · bookworm-securityNicht betroffen
nvd · openssl · debian · bookworm
3.0.17-1~deb12u2· amd64 · bookworm-updatesNicht betroffen
nvd · openssl · debian · bookworm
3.0.17-1~deb12u2· arm64 · bookworm-updatesNicht betroffen
nvd · openssl · debian · bookworm
- [libssl-doc]Nicht betroffen
Quellpaket: [openssl]
Details (6)
3.0.20-1~deb12u2· all · bookwormNicht betroffen
nvd · openssl · debian · bookworm
3.0.20-1~deb12u2· all · bookwormNicht betroffen
nvd · openssl · debian · bookworm
3.0.20-1~deb12u2· all · bookworm-securityNicht betroffen
nvd · openssl · debian · bookworm
3.0.20-1~deb12u2· all · bookworm-securityNicht betroffen
nvd · openssl · debian · bookworm
3.0.17-1~deb12u2· all · bookworm-updatesNicht betroffen
nvd · openssl · debian · bookworm
3.0.17-1~deb12u2· all · bookworm-updatesNicht betroffen
nvd · openssl · debian · bookworm
- [openssl]Nicht betroffen
Details (6)
3.0.20-1~deb12u2· amd64 · bookwormNicht betroffen
nvd · openssl · debian · bookworm
3.0.20-1~deb12u2· arm64 · bookwormNicht betroffen
nvd · openssl · debian · bookworm
3.0.20-1~deb12u2· amd64 · bookworm-securityNicht betroffen
nvd · openssl · debian · bookworm
3.0.20-1~deb12u2· arm64 · bookworm-securityNicht betroffen
nvd · openssl · debian · bookworm
3.0.17-1~deb12u2· amd64 · bookworm-updatesNicht betroffen
nvd · openssl · debian · bookworm
3.0.17-1~deb12u2· arm64 · bookworm-updatesNicht betroffen
nvd · openssl · debian · bookworm
Beobachtet:
Referenzen
- [https://access.redhat.com/errata/RHSA-2026:74162]
- [https://ftp.suse.com/pub/projects/security/]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-54875]
- [https://osv.dev/vulnerability/ALPINE-CVE-2026-54875]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-54875]
- [https://security-tracker.debian.org/tracker/CVE-2026-54875]
- [https://ubuntu.com/security/notices/USN-8847-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3638.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]