CVE-2026-3580
published 2026-03-19CVE-2026-3580: In wolfSSL 5.8.4, constant-time masking logic in sp_256_get_entry_256_9 is optimized into conditional branches (bnez) by GCC when targeting RISC-V RV32I with…
PriorityP421medium4.7CVSS 3.1
AVLACHPRLUINSUCHINAN
EPSS
0.13%
2.8th percentile
In wolfSSL 5.8.4, constant-time masking logic in sp_256_get_entry_256_9 is optimized into conditional branches (bnez) by GCC when targeting RISC-V RV32I with -O3. This transformation breaks the side-channel resistance of ECC scalar multiplication, potentially allowing a local attacker to recover secret keys via timing analysis.
Affected
6 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | wolfssl | < wolfssl 5.9.0-0.1 (forky) | wolfssl 5.9.0-0.1 (forky) |
| msrc | azl3_mariadb_10.11.16-1_on_azure_linux_3.0 | — | — |
| msrc | cbl2_mariadb_10.6.24-1_on_cbl_mariner_2.0 | — | — |
| wolfssl | wolfssl | < 5.9.0 | 5.9.0 |
| wolfssl | wolfssl | — | — |
| wolfssl | wolfssl | >= 0 < 5.9.0-0.1 | 5.9.0-0.1 |
CVSS provenance
nvdv3.14.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
nvdv4.02.1LOWCVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
osv2.1LOW
vendor_redhat7.1HIGH
vendor_debian2.1LOW
vendor_msrc2.1LOW
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Microsoft
Compiler-induced timing leak in sp_256_get_entry_256_9 on RISC-V
vendor_msrc·2026-03-10·CVSS 2.1
CVE-2026-3580 [LOW] CWE-203 Compiler-induced timing leak in sp_256_get_entry_256_9 on RISC-V
Compiler-induced timing leak in sp_256_get_entry_256_9 on RISC-V
Mariner: Mariner
wolfSSL: wolfSSL
Customer Action Required: Yes
Debian
CVE-2026-3580: wolfssl - In wolfSSL 5.8.4, constant-time masking logic in sp_256_get_entry_256_9 is optim...
vendor_debian·2026·CVSS 2.1
CVE-2026-3580 [LOW] CVE-2026-3580: wolfssl - In wolfSSL 5.8.4, constant-time masking logic in sp_256_get_entry_256_9 is optim...
In wolfSSL 5.8.4, constant-time masking logic in sp_256_get_entry_256_9 is optimized into conditional branches (bnez) by GCC when targeting RISC-V RV32I with -O3. This transformation breaks the side-channel resistance of ECC scalar multiplication, potentially allowing a local attacker to recover secret keys via timing analysis.
Scope: local
bookworm: open
bullseye: open
forky: resolved (fixed in 5.9.0-0.1)
sid: resolved (fixed in 5.9.0-0.1)
trixie: open
OSV
CVE-2026-3580: In wolfSSL 5
osv·2026-03-19·CVSS 2.1
CVE-2026-3580 [LOW] CVE-2026-3580: In wolfSSL 5
In wolfSSL 5.8.4, constant-time masking logic in sp_256_get_entry_256_9 is optimized into conditional branches (bnez) by GCC when targeting RISC-V RV32I with -O3. This transformation breaks the side-channel resistance of ECC scalar multiplication, potentially allowing a local attacker to recover secret keys via timing analysis.
GHSA
GHSA-wm74-pvww-q7h2: In wolfSSL 5
ghsa_unreviewed·2026-03-19
CVE-2026-3580 [LOW] CWE-203 GHSA-wm74-pvww-q7h2: In wolfSSL 5
In wolfSSL 5.8.4, constant-time masking logic in sp_256_get_entry_256_9 is optimized into conditional branches (bnez) by GCC when targeting RISC-V RV32I with -O3. This transformation breaks the side-channel resistance of ECC scalar multiplication, potentially allowing a local attacker to recover secret keys via timing analysis.
No detection rules found.
No public exploits indexed.
Wiz
CVE-2026-3580 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 7.5
CVE-2026-3580 [HIGH] CVE-2026-3580 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-3580 :
wolfSSL vulnerability analysis and mitigation
In wolfSSL 5.8.4, constant-time masking logic in sp_256_get_entry_256_9 is optimized into conditional branches (bnez) by GCC when targeting RISC-V RV32I with -O3. This transformation breaks the side-channel resistance of ECC scalar multiplication, potentially allowing a local attacker to recover secret keys via timing analysis.
Source : NVD
## 2.1
Score
Published March 19, 2026
Severity LOW
CNA Score 2.1
Affected Technologies
wolfSSL
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 2.1
Exploitation Probability (EPSS) N/A
Affected packages and libraries
cpe:2.3:a:wolfssl:wolfssl
wolfssl
Sources
Debian 11, 12, 13 Sever
Bugzilla
CVE-2025-3580 grafana: Improper access control in the /api/org/users/ API endpoint [fedora-all]
bugzilla·2025-05-23·CVSS 5.5
CVE-2025-3580 [MEDIUM] CVE-2025-3580 grafana: Improper access control in the /api/org/users/ API endpoint [fedora-all]
CVE-2025-3580 grafana: Improper access control in the /api/org/users/ API endpoint [fedora-all]
More information about this security flaw is available in the following bug:
https://bugzilla.redhat.com/show_bug.cgi?id=2368257
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Discussion:
This message is a reminder that Fedora Linux 42 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora Linux 42 on 2026-05-13.
It is Fedora's policy to close all bug reports from releases that are no longer
maintained. At that time this bug will be closed as EOL if it remains open with a
'version' of
2026-03-19
Published