CVE-2023-23583: Sequence of processor instructions leads to unexpected behavior for some Intel(R) Processors may allow an authenticated user to potentially
Noroxi assessment
Priority: Monitor (action score 31/100)
- Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
- Probability of exploitation in the next 30 days: 1.2% (FIRST EPSS); higher than 70% 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: intel-ucode (Alpine:v3.15) 20231114-r0; intel-microcode (Debian:10) 3.20231114.1~deb10u1; intel-microcode (Debian:11) 3.20231114.1~deb11u1.
- Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).
Low priority for now. Upgrade to intel-ucode (Alpine:v3.15) 20231114-r0; intel-microcode (Debian:10) 3.20231114.1~deb10u1; intel-microcode (Debian:11) 3.20231114.1~deb11u1 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
Sequence of processor instructions leads to unexpected behavior for some Intel(R) Processors may allow an authenticated user to potentially enable escalation of privilege and/or information disclosure and/or denial of service via local access.
- Published
- Nov 14, 2023
- Updated
- Jun 17, 2026
- EPSS
- 1.2% · 70th percentile
- CWE
- CWE-1281
Report tools
Action score
31
Monitor
Low priority for now.
- CVSS
- 31 / 40 · 7.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.2%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 7.8
- CNA · intel
- 8.8
- 1.0 point gap
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
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.
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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.
We use this product, ask for helpAffected 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.
| Vendor | Product | CPE |
|---|---|---|
| intel | core i3-10100y firmware | cpe:2.3:o:intel:core_i3-10100y_firmware |
| intel | core i3-10100y | cpe:2.3:h:intel:core_i3-10100y |
| intel | core i3-10110u firmware | cpe:2.3:o:intel:core_i3-10110u_firmware |
| intel | core i3-10110u | cpe:2.3:h:intel:core_i3-10110u |
| intel | core i3-10110y firmware | cpe:2.3:o:intel:core_i3-10110y_firmware |
| intel | core i3-10110y | cpe:2.3:h:intel:core_i3-10110y |
| intel | core i3-1005g1 firmware | cpe:2.3:o:intel:core_i3-1005g1_firmware |
| intel | core i3-1005g1 | cpe:2.3:h:intel:core_i3-1005g1 |
| intel | core i5-10500h firmware | cpe:2.3:o:intel:core_i5-10500h_firmware |
| intel | core i5-10500h | cpe:2.3:h:intel:core_i5-10500h |
| intel | core i5-10200h firmware | cpe:2.3:o:intel:core_i5-10200h_firmware |
| intel | core i5-10200h | cpe:2.3:h:intel:core_i5-10200h |
and 188 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- debian debian linux11.0
- debian debian linux12.0
- intel core i3-1005g1 firmwareall versions
- intel core i3-10100y firmwareall versions
- intel core i3-10110u firmwareall versions
- intel core i3-10110y firmwareall versions
- intel core i3-11100he firmwareall versions
- intel core i3-1110g4 firmwareall versions
- intel core i3-1115g4 firmwareall versions
- intel core i3-1115g4e firmwareall versions
- intel core i3-1115gre firmwareall versions
- intel core i3-1120g4 firmwareall versions
- intel core i3-1125g4 firmwareall versions
- intel core i5-10200h firmwareall versions
- intel core i5-10210u firmwareall versions
- intel core i5-10210y firmwareall versions
- intel core i5-10300h firmwareall versions
- intel core i5-10310u firmwareall versions
- intel core i5-10310y firmwareall versions
- intel core i5-1035g1 firmwareall versions
Versions reported by the vendor
Affected version ranges reported by the assigning authority (intel). Independent of NVD's CPE analysis and usually ahead of it.
n/a Intel(R) Processors
- See referencesaffected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Alpine:v3.15 | intel-ucode | before 20231114-r0 | 20231114-r0 |
| Debian:10 | intel-microcode | before 3.20231114.1~deb10u1 | 3.20231114.1~deb10u1 |
| Debian:11 | intel-microcode | before 3.20231114.1~deb11u1 | 3.20231114.1~deb11u1 |
| Debian:12 | intel-microcode | before 3.20231114.1~deb12u1 | 3.20231114.1~deb12u1 |
| Debian:13 | intel-microcode | before 3.20231114.1 | 3.20231114.1 |
| openSUSE:Leap Micro 5.3 | ucode-intel | before 20231114-150200.35.1 | 20231114-150200.35.1 |
| openSUSE:Leap Micro 5.3 | ucode-intel | before 20231113-150200.32.1 | 20231113-150200.32.1 |
| openSUSE:Tumbleweed | spectre-meltdown-checker | before 26.36.0602723-1.1 | 26.36.0602723-1.1 |
| openSUSE:Tumbleweed | ucode-intel | before 20231114-1.1 | 20231114-1.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS | ucode-intel | before 20231113-150100.3.228.1 | 20231113-150100.3.228.1 |
| SUSE:Linux Enterprise High Performance Computing 15 SP1-LTSS | ucode-intel | before 20231114-150100.3.231.1 | 20231114-150100.3.231.1 |
| SUSE:Linux Enterprise Micro 5.3 | ucode-intel | before 20231114-150200.35.1 | 20231114-150200.35.1 |
| SUSE:Linux Enterprise Micro 5.3 | ucode-intel | before 20231113-150200.32.1 | 20231113-150200.32.1 |
| SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | microcode_ctl | before 1.17-102.83.81.1 | 1.17-102.83.81.1 |
| SUSE:Linux Enterprise Server 12 SP5 | ucode-intel | before 20231113-128.1 | 20231113-128.1 |
| SUSE:Linux Enterprise Server 12 SP5 | ucode-intel | before 20231114-131.1 | 20231114-131.1 |
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 |
|---|---|---|
| alpine:intel-ucode | 20231114-r0 · Alpine:v3.15 | Package registry (OSV) |
| debian:intel-microcode | 3.20231114.1~deb12u1 · Debian:12 | Package registry (OSV) |
| opensuse:spectre-meltdown-checker | 26.36.0602723-1.1 · openSUSE:Tumbleweed | Package registry (OSV) |
| opensuse:ucode-intel | 20231113-150200.32.1 · openSUSE:Leap Micro 5.3 | Package registry (OSV) |
| suse:microcode_ctl | 1.17-102.83.81.1 · SUSE:Linux Enterprise Server 11 SP4 LTSS EXTREME CORE | Package registry (OSV) |
| suse:ucode-intel | 20231113-150200.32.1 · SUSE:Linux Enterprise Micro 5.3 | Package registry (OSV) |
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.
| Source | Kind | Date |
|---|---|---|
| Proof-of-concept repository on GitHub | stars:0 | 2023-11-22 |
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.
- Published
- First PoC+7 d
- TodayOct 30, 2026+1081 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 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
The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.
National notice (Türkiye Cybersecurity Directorate / USOM)
Official security notices citing this record; remediation advice is on the agency's page.
- TR-23-0644 · Nov 17, 2023(Citrix Güvenlik Zafiyeti)
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
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-1281 · Sequence of Processor Instructions Leads to Unexpected BehaviorCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.
Attack patterns (CAPEC)
ATT&CK techniques
—
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (9 more)Show less
- www.openwall.com/lists/oss-security/2023/11/14/5
- www.openwall.com/lists/oss-security/2023/11/14/6
- www.openwall.com/lists/oss-security/2023/11/14/7
- www.openwall.com/lists/oss-security/2023/11/14/8
- www.openwall.com/lists/oss-security/2023/11/14/9
- lists.debian.org/debian-lts-announce/2023/12/msg00012.html
- security.netapp.com/advisory/ntap-20231116-0015/
- www.debian.org/security/2023/dsa-5563
- www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00950.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.