ParsePKCS1PrivateKey panic with partial keys in crypto/x509
Using ParsePKCS1PrivateKey to parse a RSA key that is missing the CRT values would panic when verifying that the key is well formed.
- Published
- Jan 27, 2025
- Updated
- Jun 17, 2026
- EPSS
- 0.6% · 47th percentile
- CWE
- CWE-228
Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.
Report tools
Action score
30
Monitor
Low priority for now.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.6%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpAffected systems
—
Versions reported by the vendor
Affected version ranges reported by the assigning authority (Go). Independent of NVD's CPE analysis and usually ahead of it.
Go standard library crypto/x509
- 1.24.0-0 and later · before 1.24.0-rc.2affected · semver
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:13 | golang-1.24 | before 1.24~rc2-1 | 1.24~rc2-1 |
| Go | stdlib | from 1.24.0-0 · before 1.24.0-rc.2 | 1.24.0-rc.2 |
| openSUSE:Tumbleweed | go1.24 | before 1.24rc2-1.1 | 1.24rc2-1.1 |
| openSUSE:Tumbleweed | govulncheck-vulndb | before 0.0.20250128T150132-1.1 | 0.0.20250128T150132-1.1 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP6 | go1.24 | before 1.24rc2-150000.1.3.1 | 1.24rc2-150000.1.3.1 |
| SUSE:Linux Enterprise Module for Development Tools 15 SP6 | go1.24 | before 1.24rc2-150000.1.3.1 | 1.24rc2-150000.1.3.1 |
| SUSE:Linux Enterprise Module for Package Hub 15 SP6 | govulncheck-vulndb | before 0.0.20250207T224745-150000.1.32.1 | 0.0.20250207T224745-150000.1.32.1 |
| SUSE:Linux Enterprise Module for Package Hub 15 SP6 | govulncheck-vulndb | before 0.0.20250207T224745-150000.1.32.1 | 0.0.20250207T224745-150000.1.32.1 |
Same product
go standard library: all recordsOther highest-scoring records for the same primary product.
- CVE-2025-22874Usage of ExtKeyUsageAny disables policy validation in crypto/x50930Monitor
- CVE-2026-27145Inefficient candidate hostname parsing in crypto/x50926Monitor
- CVE-2024-45341Usage of IPv6 zone IDs can bypass URI name constraints in crypto/x50924Monitor
- CVE-2024-24783Verify panics on certificates with an unknown public key algorithm in crypto/x50923Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| Go standard library crypto/x509 | 1.24.0-rc.2 | Vendor (CNA) |
| debian:golang-1.24 | 1.24~rc2-1 · Debian:13 | Package registry (OSV) |
| Go:stdlib | 1.24.0-rc.2 | Package registry (OSV) |
| opensuse:go1.24 | 1.24rc2-150000.1.3.1 · openSUSE:Leap 15.6 | Package registry (OSV) |
| opensuse:govulncheck-vulndb | 0.0.20250207T224745-150000.1.32.1 · openSUSE:Leap 15.6 | Package registry (OSV) |
| suse:go1.24 | 1.24rc2-150000.1.3.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP6 | Package registry (OSV) |
| suse:govulncheck-vulndb | 0.0.20250207T224745-150000.1.32.1 · SUSE:Linux Enterprise Module for Package Hub 15 SP6 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- none
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-228 · Improper Handling of Syntactically Invalid StructureCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- go.dev/cl/643098
- go.dev/issue/71216
- groups.google.com/g/golang-dev/c/CAWXhan3Jww/m/bk9LAa-lCgAJ
- pkg.go.dev/vuln/GO-2025-3421
Vendor advisories and official records. Exploit/PoC links are deliberately left out.