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NVD / CVE Program· CNA AMD

CVE-2022-29900: Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-depend

Noroxi assessment

Priority: Monitor (action score 27/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 3.9% (FIRST EPSS); higher than 90.3% of all records.
  • 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.
  • Fixed version: bpftool (AlmaLinux:8) 4.18.0-372.32.1.el8_6; kernel (AlmaLinux:8) 4.18.0-372.32.1.el8_6; kernel-abi-stablelists (AlmaLinux:8) 4.18.0-372.32.1.el8_6.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to bpftool (AlmaLinux:8) 4.18.0-372.32.1.el8_6; kernel (AlmaLinux:8) 4.18.0-372.32.1.el8_6; kernel-abi-stablelists (AlmaLinux:8) 4.18.0-372.32.1.el8_6 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

Mis-trained branch predictions for return instructions may allow arbitrary speculative code execution under certain microarchitecture-dependent conditions.

MediumCVSS 6.5 · v3.1—Proof of concept Fix available
Published
Jul 12, 2022
Updated
Jun 17, 2026
EPSS
3.9% · 90th percentile

Report tools

JSON

Action score

27

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 3.9%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2022-29900

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
debiandebian linux
fedoraprojectfedora
xenxen
amdathlon x4 750 firmware
amdathlon x4 750
amdathlon x4 760k firmware
amdathlon x4 760k
amdathlon x4 830 firmware
amdathlon x4 830
amdathlon x4 835 firmware
amdathlon x4 835
amdathlon x4 840 firmware

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.

EcosystemPackageAffected rangeFix
AlmaLinux:8bpftoolbefore 4.18.0-372.32.1.el8_64.18.0-372.32.1.el8_6
AlmaLinux:8kernelbefore 4.18.0-372.32.1.el8_64.18.0-372.32.1.el8_6
AlmaLinux:8kernel-abi-stablelistsbefore 4.18.0-372.32.1.el8_64.18.0-372.32.1.el8_6
AlmaLinux:8kernel-corebefore 4.18.0-372.32.1.el8_64.18.0-372.32.1.el8_6
AlmaLinux:8kernel-cross-headersbefore 4.18.0-372.32.1.el8_64.18.0-372.32.1.el8_6
AlmaLinux:8kernel-debugbefore 4.18.0-372.32.1.el8_64.18.0-372.32.1.el8_6
AlmaLinux:8kernel-debug-corebefore 4.18.0-372.32.1.el8_64.18.0-372.32.1.el8_6
AlmaLinux:8kernel-debug-develbefore 4.18.0-372.32.1.el8_64.18.0-372.32.1.el8_6
AlmaLinux:8kernel-debug-modulesbefore 4.18.0-372.32.1.el8_64.18.0-372.32.1.el8_6
AlmaLinux:8kernel-debug-modules-extrabefore 4.18.0-372.32.1.el8_64.18.0-372.32.1.el8_6
AlmaLinux:8kernel-develbefore 4.18.0-372.32.1.el8_64.18.0-372.32.1.el8_6
AlmaLinux:8kernel-docbefore 4.18.0-372.32.1.el8_64.18.0-372.32.1.el8_6
AlmaLinux:8kernel-headersbefore 4.18.0-372.32.1.el8_64.18.0-372.32.1.el8_6
AlmaLinux:8kernel-modulesbefore 4.18.0-372.32.1.el8_64.18.0-372.32.1.el8_6
AlmaLinux:8kernel-modules-extrabefore 4.18.0-372.32.1.el8_64.18.0-372.32.1.el8_6
AlmaLinux:8kernel-rtbefore 4.18.0-372.32.1.rt7.189.el8_64.18.0-372.32.1.rt7.189.el8_6
AlmaLinux:8kernel-rt-corebefore 4.18.0-372.32.1.rt7.189.el8_64.18.0-372.32.1.rt7.189.el8_6
AlmaLinux:8kernel-rt-debugbefore 4.18.0-372.32.1.rt7.189.el8_64.18.0-372.32.1.rt7.189.el8_6
AlmaLinux:8kernel-rt-debug-corebefore 4.18.0-372.32.1.rt7.189.el8_64.18.0-372.32.1.rt7.189.el8_6
AlmaLinux:8kernel-rt-debug-develbefore 4.18.0-372.32.1.rt7.189.el8_64.18.0-372.32.1.rt7.189.el8_6
AlmaLinux:8kernel-rt-debug-kvmbefore 4.18.0-372.32.1.rt7.189.el8_64.18.0-372.32.1.rt7.189.el8_6
AlmaLinux:8kernel-rt-debug-modulesbefore 4.18.0-372.32.1.rt7.189.el8_64.18.0-372.32.1.rt7.189.el8_6
AlmaLinux:8kernel-rt-debug-modules-extrabefore 4.18.0-372.32.1.rt7.189.el8_64.18.0-372.32.1.rt7.189.el8_6
AlmaLinux:8kernel-rt-develbefore 4.18.0-372.32.1.rt7.189.el8_64.18.0-372.32.1.rt7.189.el8_6

+96

Same product

debian: all records

Other highest-scoring records for the same primary product.

  • CVE-2016-9079A use-after-free vulnerability in SVG Animation has been discovered.KEV
    86Now
  • CVE-2024-44308The issue was addressed with improved checks.KEV
    68This week
  • CVE-2021-25216A second vulnerability in BIND's GSSAPI security policy negotiation can be targeted by a buffer overflow attack
    64This week

Published before and after this one in the same product

  • ← EarlierCVE-2021-33193Aug 16, 2021 · Request splitting via HTTP/2 method injection and mod_proxy
    44Plan
  • ← EarlierCVE-2021-20001Feb 11, 2022 · It was discovered, that debian-edu-config, a set of configuration files used for the Debian Edu blend, before 2.12.16 configured insecure pe
    39Monitor
  • Later →CVE-2020-10650Dec 26, 2022 · A deserialization flaw was discovered in jackson-databind through 2.9.10.4.
    33Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
almalinux:bpftool4.18.0-372.32.1.el8_6 · AlmaLinux:8Package registry (OSV)
almalinux:kernel4.18.0-372.32.1.el8_6 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-abi-stablelists4.18.0-372.32.1.el8_6 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-core4.18.0-372.32.1.el8_6 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-cross-headers4.18.0-372.32.1.el8_6 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug4.18.0-372.32.1.el8_6 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-core4.18.0-372.32.1.el8_6 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-devel4.18.0-372.32.1.el8_6 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-modules4.18.0-372.32.1.el8_6 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-modules-extra4.18.0-372.32.1.el8_6 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-devel4.18.0-372.32.1.el8_6 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-doc4.18.0-372.32.1.el8_6 · AlmaLinux:8Package registry (OSV)
alpine:xen4.14.5-r4 · Alpine:v3.13Package registry (OSV)
debian:linux5.18.14-1 · Debian:12Package registry (OSV)
debian:linux-5.105.10.136-1~deb10u1 · Debian:10Package registry (OSV)
debian:xen4.16.2-1 · Debian:12Package registry (OSV)
opensuse:dtb-aarch645.3.18-150300.59.87.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-64kb5.3.18-150300.59.87.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-azure5.3.18-150300.38.69.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-debug4.12.14-150100.197.117.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-default4.12.14-150100.197.117.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-default-base5.3.18-150300.59.87.1.150300.18.50.2 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-kvmsmall4.12.14-150100.197.117.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-rt5.3.18-150300.96.1 · openSUSE:Leap Micro 5.2Package registry (OSV)
opensuse:kernel-source-azure5.3.18-150300.38.69.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-syms-azure5.3.18-150300.38.69.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-vanilla4.12.14-150100.197.117.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:kernel-zfcpdump4.12.14-150100.197.117.1 · openSUSE:Leap 15.3Package registry (OSV)
red hat:bpftool0:4.18.0-372.32.1.el8_6 · Red Hat:enterprise_linux:8::baseosPackage registry (OSV)
red hat:bpftool-debuginfo0:4.18.0-372.32.1.el8_6 · Red Hat:rhev_hypervisor:4.4::el8Package registry (OSV)

+30

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:02026-09-11

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.

  1. Published
  2. First PoC+1521 d
  3. TodayNov 2, 2026+1573 d

No history yet (it accumulates with the daily EPSS job).

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 researchers

Finders, 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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

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-212 · Improper Removal of Sensitive Information Before Storage or Transfer

CVSS 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.

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (5 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records