Buffer over-read in Modem
Noroxi assessment
Priority: Monitor (action score 30/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.37% (FIRST EPSS).
- 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.
- According to CISA the attack is automatable: targets can be found by mass scanning.
- According to the record, no fixed version is available yet.
Low priority for now. Update when a fix is released; follow the vendor's advisory.
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
Information disclosure due to buffer over-read in Modem while using static array to process IPv4 packets.
- Published
- Feb 12, 2023
- Updated
- Jun 17, 2026
- EPSS
- 0.3% · 30th percentile
- CWE
- CWE-126
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 · 0.3%
CISA SSVC decision
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 7.5
- CNA · qualcomm
- 8.2
- 0.7 point gap
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
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
- No public exploit code on record
- No fixed version yet
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 |
|---|---|---|
| qualcomm | ar8031 firmware | cpe:2.3:o:qualcomm:ar8031_firmware |
| qualcomm | ar8031 | cpe:2.3:h:qualcomm:ar8031 |
| qualcomm | csra6620 firmware | cpe:2.3:o:qualcomm:csra6620_firmware |
| qualcomm | csra6620 | cpe:2.3:h:qualcomm:csra6620 |
| qualcomm | csra6640 firmware | cpe:2.3:o:qualcomm:csra6640_firmware |
| qualcomm | csra6640 | cpe:2.3:h:qualcomm:csra6640 |
| qualcomm | mdm8207 firmware | cpe:2.3:o:qualcomm:mdm8207_firmware |
| qualcomm | mdm8207 | cpe:2.3:h:qualcomm:mdm8207 |
| qualcomm | mdm9205 firmware | cpe:2.3:o:qualcomm:mdm9205_firmware |
| qualcomm | mdm9205 | cpe:2.3:h:qualcomm:mdm9205 |
| qualcomm | mdm9206 firmware | cpe:2.3:o:qualcomm:mdm9206_firmware |
| qualcomm | mdm9206 | cpe:2.3:h:qualcomm:mdm9206 |
and 30 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- qualcomm ar8031 firmwareall versions
- qualcomm csra6620 firmwareall versions
- qualcomm csra6640 firmwareall versions
- qualcomm mdm8207 firmwareall versions
- qualcomm mdm9205 firmwareall versions
- qualcomm mdm9206 firmwareall versions
- qualcomm mdm9207 firmwareall versions
- qualcomm mdm9607 firmwareall versions
- qualcomm qca4004 firmwareall versions
- qualcomm qca4010 firmwareall versions
- qualcomm qca4020 firmwareall versions
- qualcomm qca4024 firmwareall versions
- qualcomm qcs405 firmwareall versions
- qualcomm qts110 firmwareall versions
- qualcomm wcd9306 firmwareall versions
- qualcomm wcd9330 firmwareall versions
- qualcomm wcd9335 firmwareall versions
- qualcomm wcn3980 firmwareall versions
- qualcomm wcn3999 firmwareall versions
- qualcomm wsa8810 firmwareall versions
Versions reported by the vendor
Affected version ranges reported by the assigning authority (qualcomm). Independent of NVD's CPE analysis and usually ahead of it.
Qualcomm, Inc. Snapdragon
- AR8031, CSRA6620, CSRA6640, MDM8207, MDM9205, MDM9206, MDM9207, MDM9607, QCA4004, QCA4010, QCA4020, QCA4024 … (+9)affected
Same product
qualcomm: all recordsOther highest-scoring records for the same primary product.
- CVE-2025-27038Use After Free in GraphicsKEV60This week
- CVE-2022-25729Improper Input Validation in MODEM39Monitor
- CVE-2022-25727Memory Corruption in modem due to improper length check while copying into memory in Snapdragon Consumer IOT, Snapdragon Industrial IOT, Sna39Monitor
Published before and after this one in the same product
- ← EarlierCVE-2022-25735Feb 12, 2023 · Null Pointer Dereference in MODEM30Monitor
- ← EarlierCVE-2022-25738Feb 12, 2023 · Buffer Over-read in MODEM30Monitor
- Later →CVE-2025-47321Dec 18, 2025 · Buffer Copy Without Checking Size of Input in Core Services31Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
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
- 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-126 · Buffer Over-readCVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.