Aliases in the branch predictor may cause some AMD processors to predict the wrong branch type potentially leading to information disclosure
Aliases in the branch predictor may cause some AMD processors to predict the wrong branch type potentially leading to information disclosure.
- BDU:2023-01494
- ALSA-2022:7110
- ALSA-2022:7134
- ALSA-2022:7933
- ALSA-2022:8267
- DSA-5184-1
- RHSA-2022:7110
- RHSA-2022:7134
- RHSA-2022:7337
- RHSA-2022:7338
- RHSA-2022:8973
- RHSA-2022:8974
- RLSA-2022:7110
- RLSA-2022:7134
- SUSE-SU-2022:2557-1
- SUSE-SU-2022:2560-1
- SUSE-SU-2022:2569-1
- SUSE-SU-2022:2574-1
- SUSE-SU-2022:2591-1
- SUSE-SU-2022:2597-1
- Published
- Jul 14, 2022
- Updated
- Jun 17, 2026
- EPSS
- 0.8% · 55th percentile
- CWE
- CWE-668
Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.
Report tools
Action score
26
Monitor
Low priority for now.
- CVSS
- 26 / 40 · 6.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.8%
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
| Vendor | Product | CPE |
|---|---|---|
| amd | ryzen 3 2200u | cpe:2.3:h:amd:ryzen_3_2200u |
| amd | ryzen 5 4500u | cpe:2.3:h:amd:ryzen_5_4500u |
| amd | athlon x4 750 firmware | cpe:2.3:o:amd:athlon_x4_750_firmware |
| amd | athlon x4 750 | cpe:2.3:h:amd:athlon_x4_750 |
| amd | athlon x4 760k firmware | cpe:2.3:o:amd:athlon_x4_760k_firmware |
| amd | athlon x4 760k | cpe:2.3:h:amd:athlon_x4_760k |
| amd | athlon x4 830 firmware | cpe:2.3:o:amd:athlon_x4_830_firmware |
| amd | athlon x4 830 | cpe:2.3:h:amd:athlon_x4_830 |
| amd | athlon x4 835 firmware | cpe:2.3:o:amd:athlon_x4_835_firmware |
| amd | athlon x4 835 | cpe:2.3:h:amd:athlon_x4_835 |
| amd | athlon x4 840 firmware | cpe:2.3:o:amd:athlon_x4_840_firmware |
| amd | athlon x4 840 | cpe:2.3:h:amd:athlon_x4_840 |
and 188 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- amd a10-9600p firmwareall versions
- amd a10-9630p firmwareall versions
- amd a12-9700p firmwareall versions
- amd a12-9730p firmwareall versions
- amd a4-9120 firmwareall versions
- amd a6-9210 firmwareall versions
- amd a6-9220 firmwareall versions
- amd a6-9220c firmwareall versions
- amd a9-9410 firmwareall versions
- amd a9-9420 firmwareall versions
- amd athlon gold 3150u firmwareall versions
- amd athlon silver 3050u firmwareall versions
- amd athlon x4 750 firmwareall versions
- amd athlon x4 760k firmwareall versions
- amd athlon x4 830 firmwareall versions
- amd athlon x4 835 firmwareall versions
- amd athlon x4 840 firmwareall versions
- amd athlon x4 845 firmwareall versions
- amd athlon x4 860k firmwareall versions
- amd athlon x4 870k firmwareall versions
Versions reported by the vendor
Affected version ranges reported by the assigning authority (AMD). Independent of NVD's CPE analysis and usually ahead of it.
AMD AMD Processors
- Processor Some AMD Processorsaffected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| AlmaLinux:8 | bpftool | before 4.18.0-372.32.1.el8_6 | 4.18.0-372.32.1.el8_6 |
| AlmaLinux:8 | kernel | before 4.18.0-372.32.1.el8_6 | 4.18.0-372.32.1.el8_6 |
| AlmaLinux:8 | kernel-abi-stablelists | before 4.18.0-372.32.1.el8_6 | 4.18.0-372.32.1.el8_6 |
| AlmaLinux:8 | kernel-core | before 4.18.0-372.32.1.el8_6 | 4.18.0-372.32.1.el8_6 |
| AlmaLinux:8 | kernel-cross-headers | before 4.18.0-372.32.1.el8_6 | 4.18.0-372.32.1.el8_6 |
| AlmaLinux:8 | kernel-debug | before 4.18.0-372.32.1.el8_6 | 4.18.0-372.32.1.el8_6 |
| AlmaLinux:8 | kernel-debug-core | before 4.18.0-372.32.1.el8_6 | 4.18.0-372.32.1.el8_6 |
| AlmaLinux:8 | kernel-debug-devel | before 4.18.0-372.32.1.el8_6 | 4.18.0-372.32.1.el8_6 |
| AlmaLinux:8 | kernel-debug-modules | before 4.18.0-372.32.1.el8_6 | 4.18.0-372.32.1.el8_6 |
| AlmaLinux:8 | kernel-debug-modules-extra | before 4.18.0-372.32.1.el8_6 | 4.18.0-372.32.1.el8_6 |
| AlmaLinux:8 | kernel-devel | before 4.18.0-372.32.1.el8_6 | 4.18.0-372.32.1.el8_6 |
| AlmaLinux:8 | kernel-doc | before 4.18.0-372.32.1.el8_6 | 4.18.0-372.32.1.el8_6 |
| AlmaLinux:8 | kernel-headers | before 4.18.0-372.32.1.el8_6 | 4.18.0-372.32.1.el8_6 |
| AlmaLinux:8 | kernel-modules | before 4.18.0-372.32.1.el8_6 | 4.18.0-372.32.1.el8_6 |
| AlmaLinux:8 | kernel-modules-extra | before 4.18.0-372.32.1.el8_6 | 4.18.0-372.32.1.el8_6 |
| AlmaLinux:8 | kernel-rt | before 4.18.0-372.32.1.rt7.189.el8_6 | 4.18.0-372.32.1.rt7.189.el8_6 |
| AlmaLinux:8 | kernel-rt-core | before 4.18.0-372.32.1.rt7.189.el8_6 | 4.18.0-372.32.1.rt7.189.el8_6 |
| AlmaLinux:8 | kernel-rt-debug | before 4.18.0-372.32.1.rt7.189.el8_6 | 4.18.0-372.32.1.rt7.189.el8_6 |
| AlmaLinux:8 | kernel-rt-debug-core | before 4.18.0-372.32.1.rt7.189.el8_6 | 4.18.0-372.32.1.rt7.189.el8_6 |
| AlmaLinux:8 | kernel-rt-debug-devel | before 4.18.0-372.32.1.rt7.189.el8_6 | 4.18.0-372.32.1.rt7.189.el8_6 |
| AlmaLinux:8 | kernel-rt-debug-kvm | before 4.18.0-372.32.1.rt7.189.el8_6 | 4.18.0-372.32.1.rt7.189.el8_6 |
| AlmaLinux:8 | kernel-rt-debug-modules | before 4.18.0-372.32.1.rt7.189.el8_6 | 4.18.0-372.32.1.rt7.189.el8_6 |
| AlmaLinux:8 | kernel-rt-debug-modules-extra | before 4.18.0-372.32.1.rt7.189.el8_6 | 4.18.0-372.32.1.rt7.189.el8_6 |
| AlmaLinux:8 | kernel-rt-devel | before 4.18.0-372.32.1.rt7.189.el8_6 | 4.18.0-372.32.1.rt7.189.el8_6 |
+96
Same product
amd: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-23823A potential vulnerability in some AMD processors using frequency scaling may allow an authenticated attacker to execute a timing attack to p26Monitor
- CVE-2022-27672When SMT is enabled, certain AMD processors may speculatively execute instructions using a target
from the sibling thread after an SMT mode 18Monitor
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 |
|---|---|---|
| almalinux:bpftool | 4.18.0-372.32.1.el8_6 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:kernel | 4.18.0-372.32.1.el8_6 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:kernel-abi-stablelists | 4.18.0-372.32.1.el8_6 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:kernel-core | 4.18.0-372.32.1.el8_6 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:kernel-cross-headers | 4.18.0-372.32.1.el8_6 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:kernel-debug | 4.18.0-372.32.1.el8_6 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:kernel-debug-core | 4.18.0-372.32.1.el8_6 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:kernel-debug-devel | 4.18.0-372.32.1.el8_6 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:kernel-debug-modules | 4.18.0-372.32.1.el8_6 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:kernel-debug-modules-extra | 4.18.0-372.32.1.el8_6 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:kernel-devel | 4.18.0-372.32.1.el8_6 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:kernel-doc | 4.18.0-372.32.1.el8_6 · AlmaLinux:8 | Package registry (OSV) |
| alpine:xen | 4.14.5-r4 · Alpine:v3.13 | Package registry (OSV) |
| debian:xen | 4.16.2-1 · Debian:12 | Package registry (OSV) |
| opensuse:xen | 4.16.1_06-150400.4.8.1 · openSUSE:Leap 15.4 | Package registry (OSV) |
| red hat:bpftool | 0:4.18.0-372.32.1.el8_6 · Red Hat:enterprise_linux:8::baseos | Package registry (OSV) |
| red hat:bpftool-debuginfo | 0:4.18.0-372.32.1.el8_6 · Red Hat:rhev_hypervisor:4.4::el8 | Package registry (OSV) |
| red hat:kernel | 0:4.18.0-372.32.1.el8_6 · Red Hat:enterprise_linux:8::baseos | Package registry (OSV) |
| red hat:kernel-abi-stablelists | 0:4.18.0-372.32.1.el8_6 · Red Hat:enterprise_linux:8::baseos | Package registry (OSV) |
| red hat:kernel-debug-debuginfo | 0:4.18.0-372.32.1.el8_6 · Red Hat:rhev_hypervisor:4.4::el8 | Package registry (OSV) |
| red hat:kernel-debuginfo | 0:4.18.0-372.32.1.el8_6 · Red Hat:rhev_hypervisor:4.4::el8 | Package registry (OSV) |
| red hat:kernel-debuginfo-common-x86_64 | 0:4.18.0-372.32.1.el8_6 · Red Hat:rhev_hypervisor:4.4::el8 | Package registry (OSV) |
| red hat:kernel-devel | 0:4.18.0-372.32.1.el8_6 · Red Hat:rhev_hypervisor:4.4::el8 | Package registry (OSV) |
| red hat:kernel-tools-debuginfo | 0:4.18.0-372.32.1.el8_6 · Red Hat:rhev_hypervisor:4.4::el8 | Package registry (OSV) |
| red hat:perf | 0:4.18.0-372.32.1.el8_6 · Red Hat:rhev_hypervisor:4.4::el8 | Package registry (OSV) |
| red hat:perf-debuginfo | 0:4.18.0-372.32.1.el8_6 · Red Hat:rhev_hypervisor:4.4::el8 | Package registry (OSV) |
| red hat:python3-perf-debuginfo | 0:4.18.0-372.32.1.el8_6 · Red Hat:rhev_hypervisor:4.4::el8 | Package registry (OSV) |
| rocky linux:kernel | 0:4.18.0-372.32.1.el8_6 · Rocky Linux:8 | Package registry (OSV) |
| rocky linux:kernel-rt | 0:4.18.0-372.32.1.rt7.189.el8_6 · Rocky Linux:8 | Package registry (OSV) |
| suse:xen | 4.12.4_26-3.74.1 · SUSE:Linux Enterprise Software Development Kit 12 SP5 | Package registry (OSV) |
+1
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.
No credits in the CNA record.
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
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- 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
Impact can extend beyond the vulnerable component (scope changes).
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Changed
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
CWE-668 · Exposure of Resource to Wrong SphereCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
nvd-primary
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
- www.openwall.com/lists/oss-security/2022/11/08/1
- www.openwall.com/lists/oss-security/2022/11/10/2
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D4RW5FCIYFNCQOEFJEUIRW3DGYW7CWBG/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KLSRW4LLTAT3CZMOYVNTC7YIYGX3KLED/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M27MB3QFNIJV4EQQSXWARHP3OGX6CR6K/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MYI3OMJ7RIZNL3C6GUWNANNPEUUID6FM/
- security.gentoo.org/glsa/202402-07
- www.amd.com/en/corporate/product-security/bulletin/amd-sb-1037
- www.debian.org/security/2022/dsa-5184
Vendor advisories and official records. Exploit/PoC links are deliberately left out.