Background exploitation KEV catalog
CVE-2021-38406

Delta Electronics DOPSoft 2 Improper Input Validation Vulnerability

Delta Electronic DOPSoft 2 (Version 2.00.07 and prior) lacks proper validation of user-supplied data when parsing specific project files. This could result in multiple out-of-bounds write instances. An attacker could leverage this…

CheckOps priority index
7.2/10 Patch within 7 days
Severity7.8
Probability7.6
Exploitation3/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 76.4% higher than 99.5% of CVEs
CVSS 3.1 7.8 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:
Exploited for 1,532 days 25 Aug 2022
CISA due date 15 Sept 2022 for US federal agencies

Exploitation probability EPSS · FIRST

05010026 Sep06 Oct15 Oct25 Oct03 Nov
EPSS probability (%)Percentile among all CVEs

Exploitation signals 3 / 5

  • KEV catalog (CISA)25 Aug 2022
  • Exploited in EUVD (ENISA)25 Aug 2022
  • Used by ransomwareno
  • EPSS above 10 %76.4%
  • No account, over the networkno

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: The impacted product is end-of-life and should be disconnected if still in use.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Description ENISA EUVD

Delta Electronic DOPSoft 2 (Version 2.00.07 and prior) lacks proper validation of user-supplied data when parsing specific project files. This could result in multiple out-of-bounds write instances. An attacker could leverage this vulnerability to execute code in the context of the current process.

Affected products

DOPSoft 2
Affected versions
  • unspecified ≤2.00.07
Weaknesses (CWE)

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

  1. Published

  2. Exploitation reported (ENISA)

  3. Added to the KEV catalog

  4. CISA remediation due date

  5. EPSS peak: 76.4%

References

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Sources: CISA KEV · ENISA EUVD · FIRST EPSS · OSV. Public data aggregated by CheckOps, updated automatically. Source texts remain the property of their authors. All exploited vulnerabilities