PatchSiren

PatchSiren cyber security CVE debrief

CVE-2023-3632 Sifir Bes Education and Informatics CVE debrief

CVE-2023-3632 is a critical authentication flaw in Kunduz - Homework Helper App tied to a hard-coded cryptographic key. According to the NVD record and USOM advisory references, versions before 6.2.3 are affected, and the issue can enable authentication abuse and authentication bypass. Because the flaw is remotely reachable and requires no user interaction, the safest response is to upgrade to 6.2.3 or later and treat any authentication material handled by the app as potentially exposed.

Vendor
Sifir Bes Education and Informatics
Product
Kunduz - Homework Helper App
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2023-08-09
Original CVE updated
2026-05-21
Advisory published
2023-08-09
Advisory updated
2026-05-21

Who should care

Security teams, mobile app owners, IAM/authentication engineers, and administrators responsible for Kunduz - Homework Helper App deployments before 6.2.3. Organizations that rely on the app for user sign-in, account access, or protected content should prioritize this immediately because the CVSS vector indicates remote exploitation without privileges or user interaction.

Technical summary

NVD lists the vulnerability as CVSS 3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H, which corresponds to a critical remote issue. The weakness is identified by USOM as CWE-321 (Use of Hard-coded Cryptographic Key). The vulnerable CPE entry covers kunduz versions before 6.2.3. In defensive terms, a hard-coded key can undermine authentication-related cryptographic checks, making it possible to abuse or bypass authentication controls if the key is recovered or reused.

Defensive priority

Critical. This is a remotely exploitable authentication-control weakness with maximum CVSS severity and a fixed affected-version boundary in the record.

Recommended defensive actions

  • Upgrade Kunduz - Homework Helper App to version 6.2.3 or later.
  • Inventory all deployments and confirm no older app builds remain in use.
  • Rotate or invalidate any secrets, tokens, certificates, or session material that may have been derived from or protected by the affected key.
  • Review authentication logs for abnormal sign-in patterns, token reuse, or unexpected account access around the exposure window.
  • Verify backend and mobile-client releases together so older app versions cannot continue authenticating against sensitive services.
  • If immediate upgrading is not possible, restrict access to the affected app and monitor authentication activity more aggressively until remediation is complete.

Evidence notes

The source corpus shows CVE publication on 2023-08-09T09:15:14.297Z and a later record modification on 2026-05-21T14:16:40.473Z; the publication timestamp is the correct disclosure anchor. NVD lists the vulnerable CPE as kunduz versions before 6.2.3 and provides the CVSS 3.1 vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. USOM-linked references identify the weakness as CWE-321 and provide the third-party advisory context. No KEV entry was supplied.

Sources and references

Verified primary and authoritative sources

  • CVE-2023-3632 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2023-3632

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2023-3632 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2023-3632

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.