Improper Restriction of Operations within the Bounds of a Memory Buffer in TZ Secure OS
Memory corruption in TZ Secure OS while loading an app ELF.
- Published
- Nov 7, 2023
- Updated
- Jun 17, 2026
- EPSS
- 0.1% · 3th percentile
- CWE
- CWE-119
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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 · 0.1%
CNA vs NVD score
- NVD
- 7.8
- CNA · qualcomm
- 8.2
- 0.4 point gap
CVSS:3.1/AV:L/AC:L/PR:H/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.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| qualcomm | 315 5g iot modem firmware | cpe:2.3:o:qualcomm:315_5g_iot_modem_firmware |
| qualcomm | 315 5g iot modem | cpe:2.3:h:qualcomm:315_5g_iot_modem |
| qualcomm | 9205 lte modem firmware | cpe:2.3:o:qualcomm:9205_lte_modem_firmware |
| qualcomm | 9205 lte modem | cpe:2.3:h:qualcomm:9205_lte_modem |
| qualcomm | aqt1000 firmware | cpe:2.3:o:qualcomm:aqt1000_firmware |
| qualcomm | aqt1000 | cpe:2.3:h:qualcomm:aqt1000 |
| qualcomm | ar8031 firmware | cpe:2.3:o:qualcomm:ar8031_firmware |
| qualcomm | ar8031 | cpe:2.3:h:qualcomm:ar8031 |
| qualcomm | ar8035 firmware | cpe:2.3:o:qualcomm:ar8035_firmware |
| qualcomm | ar8035 | cpe:2.3:h:qualcomm:ar8035 |
| qualcomm | csra6620 firmware | cpe:2.3:o:qualcomm:csra6620_firmware |
| qualcomm | csra6620 | cpe:2.3:h:qualcomm:csra6620 |
and 188 more
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- qualcomm 315 5g iot modem firmwareall versions
- qualcomm 9205 lte modem firmwareall versions
- qualcomm aqt1000 firmwareall versions
- qualcomm ar8031 firmwareall versions
- qualcomm ar8035 firmwareall versions
- qualcomm csra6620 firmwareall versions
- qualcomm csra6640 firmwareall versions
- qualcomm fastconnect 6200 firmwareall versions
- qualcomm fastconnect 6700 firmwareall versions
- qualcomm fastconnect 6800 firmwareall versions
- qualcomm fastconnect 6900 firmwareall versions
- qualcomm fastconnect 7800 firmwareall versions
- qualcomm flight rb5 5g platform firmwareall versions
- qualcomm qam8255p firmwareall versions
- qualcomm qam8295p firmwareall versions
- qualcomm qam8650p firmwareall versions
- qualcomm qam8775p firmwareall versions
- qualcomm qamsrv1h firmwareall versions
- qualcomm qca4004 firmwareall versions
- qualcomm qca6174a 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
- 315 5G IoT Modem, 9205 LTE Modem, AQT1000, AR8031, AR8035, CSRA6620, CSRA6640, FastConnect 6200, FastConnect 6700, FastConnect 6800, FastConnect 6900, FastConnect 7800 … (+28)affected
Same product
qualcomm: all recordsOther highest-scoring records for the same primary product.
- CVE-2023-33107Integer Overflow or Wraparound in Graphics LinuxKEV61This week
- CVE-2023-33063Use After Free in DSP ServicesKEV61This week
- CVE-2023-22388Use of Out-of-range Pointer Offset in Multi-mode Call Processor39Monitor
- CVE-2023-22385Buffer Over-read in Data Modem39Monitor
- CVE-2023-33054Improper Authentication in GPS HLOS Driver36Monitor
- CVE-2023-28585Integer Overflow to Buffer Overflow in TZ Secure OS35Monitor
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.
- CVE-2023-2855027 days apartImproper Restriction of Operations within the Bounds of a Memory Buffer in MPP Performance31Monitor
- CVE-2023-2855127 days apartImproper Restriction of Operations within the Bounds of a Memory Buffer in UTILS31Monitor
- CVE-2023-2858727 days apartImproper Restriction of Operations within the Bounds of a Memory Buffer in BT Controller31Monitor
- CVE-2023-2854963 days apartImproper Restriction of Operations within the Bounds of a Memory Buffer in WLAN HAL31Monitor
- CVE-2023-2858627 days apartImproper Restriction of Operation within the Bounds of a Memory Buffer in TZ Secure OS26Monitor
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
- 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-119 · Improper Restriction of Operations within the Bounds of a Memory BufferCVSS 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)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Overflow BuffersCAPEC-100likelihood: High · Very High
- Buffer ManipulationCAPEC-123likelihood: High · Very High
- Client-side Injection-induced Buffer OverflowCAPEC-14likelihood: Medium · High
- Filter Failure through Buffer OverflowCAPEC-24likelihood: High · High
- MIME ConversionCAPEC-42likelihood: High · High
- Overflow Binary Resource FileCAPEC-44likelihood: High · Very High
- Buffer Overflow via Symbolic LinksCAPEC-45likelihood: High · High
ATT&CK techniques
—
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; 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 helpChange 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.