How severe is CVE-2015-1601?

CVE-2015-1601 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2015-1601 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-1601?

CVE-2015-1601 primarily affects Siemens Simatic Step 7. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-1601?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2015-1601 published?

CVE-2015-1601 was published on 2015-04-06 and last updated on 2026-06-17.

CVE-2015-1601

CVE-2015-1601 is a medium-severity vulnerability in Siemens Simatic Step 7 with a CVSS 2.0 base score of 6.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-254.

Key facts

Severity: Medium (CVSS 2.0 base score 6.8)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-254
Affected product: Siemens Simatic Step 7
Published: 2015-04-06
Last modified: 2026-06-17

Description

Siemens SIMATIC STEP 7 (TIA Portal) 12 and 13 before 13 SP1 Upd1 allows man-in-the-middle attackers to obtain sensitive information or modify transmitted data via unspecified vectors.

Frequently asked questions

What is CVE-2015-1601?: Siemens SIMATIC STEP 7 (TIA Portal) 12 and 13 before 13 SP1 Upd1 allows man-in-the-middle attackers to obtain sensitive information or modify transmitted data via unspecified vectors.
How severe is CVE-2015-1601?: CVE-2015-1601 has a CVSS 2.0 base score of 6.8, rated medium severity.
Is CVE-2015-1601 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-1601?: CVE-2015-1601 primarily affects Siemens Simatic Step 7. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-1601?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2015-1601 published?: CVE-2015-1601 was published on 2015-04-06 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:siemens:simatic_step_7:*:sp1:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_step_7:12:*:*:*:*:*:*:*
cpe:2.3:a:siemens:simatic_step_7:13:*:*:*:*:*:*:*

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