How severe is CVE-2020-27646?

CVE-2020-27646 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2020-27646 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-27646?

CVE-2020-27646 affects Biscom Secure File Transfer. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-27646?

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

When was CVE-2020-27646 published?

CVE-2020-27646 was published on 2020-10-22 and last updated on 2026-06-17.

CVE-2020-27646

CVE-2020-27646 is a medium-severity vulnerability in Biscom Secure File Transfer with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Biscom Secure File Transfer
Published: 2020-10-22
Last modified: 2026-06-17

Description

Biscom Secure File Transfer (SFT) before 5.1.1082 and 6.x before 6.0.1011 allows user credential theft.

Frequently asked questions

What is CVE-2020-27646?: Biscom Secure File Transfer (SFT) before 5.1.1082 and 6.x before 6.0.1011 allows user credential theft.
How severe is CVE-2020-27646?: CVE-2020-27646 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2020-27646 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-27646?: CVE-2020-27646 affects Biscom Secure File Transfer. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-27646?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-27646 published?: CVE-2020-27646 was published on 2020-10-22 and last updated on 2026-06-17.

References

https://cve.biscom.com/bis-sft-cv-0011/

Affected products (1)

cpe:2.3:a:biscom:secure_file_transfer:*:*:*:*:*:*:*:*

More vulnerabilities in Biscom Secure File Transfer

CVE-2020-8796 — Critical (CVSS 9.8): Biscom Secure File Transfer (SFT) before 5.1.1071 and 6.0.1xxx before 6.0.1005 allows Remote Code Execution on the…
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CVE-2020-8503 — Medium (CVSS 6.5): Biscom Secure File Transfer (SFT) 5.0.1050 through 5.1.1067 and 6.0.1000 through 6.0.1003 allows Insecure Direct Object…
CVE-2017-5247 — Medium (CVSS 5.4): Biscom Secure File Transfer is vulnerable to cross-site scripting in the File Name field. An authenticated user with…
CVE-2017-5241 — Medium (CVSS 5.4): Biscom Secure File Transfer versions 5.0.0.0 trough 5.1.1024 are vulnerable to post-authentication persistent…
CVE-2017-5246 — Medium (CVSS 4.3): Biscom Secure File Transfer is vulnerable to AngularJS expression injection in the Display Name field. An authenticated…

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