CVE-2007-0020: Heap-based buffer overflow in the SFTP protocol handler for Panic Transmit (Transmit.app) up to 3.5.5 allows r

Q: How do I fix CVE-2007-0020?

panic transmit: upgrade to newer than 3.5.5. Exact commands for each OS are on this page.

Q: Is CVE-2007-0020 being exploited?

CVE-2007-0020 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2007-0020 affect?

CVE-2007-0020 affects panic transmit. Severity is high (CVSS 9.3). Heap-based buffer overflow in the SFTP protocol handler for Panic Transmit (Transmit.app) up to 3.5.5 allows remote attackers to execute arbitrary code via a long ftps:// URL.

Q: How urgent is CVE-2007-0020?

Priority 61/100. Critical severity; EPSS top 5%: very likely to be exploited; Public exploit reference

This week

HIGH 9.3UPGRADE

CVE-2007-0020 is a high-severity flaw (CVSS 9.3) affecting panic transmit. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Heap-based buffer overflow in the SFTP protocol handler for Panic Transmit (Transmit.app) up to 3.5.5 allows remote attackers to execute arbitrary code via a long ftps:// URL.

Why this priority

Critical severity
EPSS top 5%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	9.3 (High)
EPSS exploit chance	7.9% (top 5%)
CISA exploited list	No
Published	2007-01-24
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: panic transmit

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2007-01-24 01:28 UTCPublished CVE record published
2026-06-16 22:34 UTCUpdated Record last modified

panic transmit panic transmit UPGRADE

Affected: <= 3.5.5

Fixed in: newer than 3.5.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy panic-transmit || rpm -q panic-transmit || panic-transmit --version

2. UPGRADE to newer than 3.5.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade panic-transmit

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade panic-transmit

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Transmit.app 3.5.5 - 'ftps://' URL Handler Heap Buffer Overflow (PoC)

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2007-0020?

panic transmit: upgrade to newer than 3.5.5. Exact commands for each OS are on this page.

Is CVE-2007-0020 being exploited?

CVE-2007-0020 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2007-0020 affect?

CVE-2007-0020 affects panic transmit. Severity is high (CVSS 9.3). Heap-based buffer overflow in the SFTP protocol handler for Panic Transmit (Transmit.app) up to 3.5.5 allows remote attackers to execute arbitrary code via a long ftps:// URL.

How urgent is CVE-2007-0020?

Priority 61/100. Critical severity; EPSS top 5%: very likely to be exploited; Public exploit reference

References

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