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CVE-2018-13927· NVD / CVE Program· CNA qualcomm

Debug policy with invalid signature can be loaded when the debug policy functionality is disabled by using the parallel image loading in Sna

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.18% (FIRST EPSS).
  • 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.
  • 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

Debug policy with invalid signature can be loaded when the debug policy functionality is disabled by using the parallel image loading in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wired Infrastructure and Networking in MDM9206, MDM9607, MDM9650, MDM9655, MSM8996AU, QCS404, QCS605, SD 410/12, SD 636, SD 712 / SD 710 / SD 670, SD 820, SD 820A, SD 835, SD 845 / SD 850, SD 855, SD 8CX, SDA660, SDM630, SDM660, SXR1130

HighCVSS 7.8 · v3.0—No exploit No fix recorded
Published
Jul 22, 2019
Updated
Jun 16, 2026
EPSS
0.1% · 7th percentile

Report tools

JSON

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%

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.

Follow CVE-2018-13927

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
qualcommmdm9206 firmware
qualcommmdm9206
qualcommmdm9607 firmware
qualcommmdm9607
qualcommmdm9650 firmware
qualcommmdm9650
qualcommmdm9655 firmware
qualcommmdm9655
qualcommmsm8996au firmware
qualcommmsm8996au
qualcommqcs404 firmware
qualcommqcs404

and 36 more

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • qualcomm mdm9206 firmwareall versions
  • qualcomm mdm9607 firmwareall versions
  • qualcomm mdm9650 firmwareall versions
  • qualcomm mdm9655 firmwareall versions
  • qualcomm msm8996au firmwareall versions
  • qualcomm qcs404 firmwareall versions
  • qualcomm qcs605 firmwareall versions
  • qualcomm sd 410 firmwareall versions
  • qualcomm sd 412 firmwareall versions
  • qualcomm sd 636 firmwareall versions
  • qualcomm sd 670 firmwareall versions
  • qualcomm sd 710 firmwareall versions
  • qualcomm sd 712 firmwareall versions
  • qualcomm sd 820 firmwareall versions
  • qualcomm sd 820a firmwareall versions
  • qualcomm sd 835 firmwareall versions
  • qualcomm sd 845 firmwareall versions
  • qualcomm sd 850 firmwareall versions
  • qualcomm sd 855 firmwareall versions
  • qualcomm sd 8cx 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 Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wired Infr

    • MDM9206, MDM9607, MDM9650, MDM9655, MSM8996AU, QCS404, QCS605, SD 410/12, SD 636, SD 712 / SD 710 / SD 670, SD 820, SD 820A, SD 835, SD 845 / SD 850, SD 855, SD 8CX, SDA660, SDM630, SDM660, SXR1130affected

Same product

qualcomm: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-14913In Android before 2018-01-05 on Qualcomm Snapdragon IoT, Snapdragon Mobile MDM9206, SD 625, SD 650/52, SD 835, SD 845, DDR address input val
    40Plan
  • CVE-2017-14911In Android before 2018-01-05 on Qualcomm Snapdragon IoT, Snapdragon Mobile, Snapdragon Automobile APQ8096AU, MDM9206, MDM9650, MSM8996AU, SD
    40Plan
  • CVE-2019-10541Dereference on uninitialized buffer can happen when parsing FLV clip with corrupted codec specific data in Snapdragon Auto, Snapdragon Compu
    39Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2018-5903Jun 14, 2019 · Out of bounds read occurs due to improper validation of array while processing VDEV stop response from WLAN firmware in Snapdragon Auto, Sna
    31Monitor
  • ← EarlierCVE-2018-13896Jul 22, 2019 · XBL_SEC image authentication and other crypto related validations are accessible to a compromised OEM XBL Loader due to missing lock at XBL_
    31Monitor
  • Later →CVE-2019-2243Jul 22, 2019 · Possible buffer overflow at the end of iterating loop while getting the version info and lead to information disclosure.
    22Monitor

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.

EPSS, last 120 days

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 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).

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-287 · Improper Authentication

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Root cause

Authentication is added route by route instead of being enforced in one place. When a route added later bypasses the shared middleware, the session check never runs for it.

The bug in code

The whole CWE-287 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
app.use("/admin", requireSession, adminRouter);
// Route added later skips the middlewareapp.post("/admin-api/config", updateConfig);

Fixed

ts
const admin = express.Router();admin.use(requireSession, requireRole("admin"));
admin.post("/config", updateConfig);app.use("/admin", admin);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

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.

All records