CVE-2019-13508: FreeTDS through 1.1.11 has a Buffer Overflow.

Q: How do I fix CVE-2019-13508?

freetds: upgrade to newer than 1.1.11; ubuntu linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2019-13508 being exploited?

CVE-2019-13508 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-2019-13508 affect?

CVE-2019-13508 affects freetds, ubuntu linux. Severity is critical (CVSS 9.8). FreeTDS through 1.1.11 has a Buffer Overflow.

Q: How urgent is CVE-2019-13508?

Priority 64/100. Critical severity; Remotely exploitable, no login, no user action; On your watchlist

This week

CRITICAL 9.8REMOTEWATCHLISTUPGRADEMITIGATE

CVE-2019-13508 is a critical-severity flaw (CVSS 9.8) affecting freetds, ubuntu linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

FreeTDS through 1.1.11 has a Buffer Overflow.

Why this priority

Critical severity
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.8% (top 22%)
CISA exploited list	No
Weakness	CWE-119
Published	2019-10-31
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: canonical · freetds

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-10-31 21:15 UTCPublished CVE record published
2026-06-17 02:16 UTCUpdated Record last modified

freetds freetds UPGRADE

Affected: <= 1.1.11

Fixed in: newer than 1.1.11

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy freetds || rpm -q freetds || freetds --version

2. UPGRADE to newer than 1.1.11 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade freetds

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade freetds

Note

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

canonical ubuntu linux MITIGATE

Affected: 18.04 · 19.04 · 19.10

Fixed in: no fixed release known

Safe to downgrade to: a release before 18.04

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2019-13508?

freetds: upgrade to newer than 1.1.11; ubuntu linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-13508 being exploited?

CVE-2019-13508 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-2019-13508 affect?

CVE-2019-13508 affects freetds, ubuntu linux. Severity is critical (CVSS 9.8). FreeTDS through 1.1.11 has a Buffer Overflow.

How urgent is CVE-2019-13508?

Priority 64/100. Critical severity; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Ubuntu vulnerabilities

References

← Back to latest CVEs