CVE-2019-9656: An issue was discovered in LibOFX 0.9.14

This week

HIGH 8.8WATCHLISTDOWNGRADEMITIGATEMITIGATE

CVE-2019-9656 is a high-severity flaw (CVSS 8.8) affecting libofx, debian linux, ubuntu linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in LibOFX 0.9.14. There is a NULL pointer dereference in the function OFXApplication::startElement in the file lib/ofx_sgml.cpp, as demonstrated by ofxdump.

Why this priority

High severity
Public exploit reference
On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	2.2% (top 18%)
CISA exploited list	No
Weakness	CWE-476
Published	2019-03-11
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: canonical · debian · libofx project

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

Am I affected?

Timeline

2019-03-11 05:29 UTCPublished CVE record published
2026-06-17 02:44 UTCUpdated Record last modified

libofx project libofx DOWNGRADE

Affected: 0.9.14

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.9.14

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.9.14 (Debian / Ubuntu)

apt-cache madison libofx sudo apt install libofx=<VERSION_BEFORE_0.9.14> sudo apt-mark hold libofx

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list libofx sudo dnf downgrade libofx-<VERSION_BEFORE_0.9.14> sudo dnf versionlock add libofx

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

debian debian linux MITIGATE

Affected: 8.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0

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.

canonical ubuntu linux MITIGATE

Affected: 16.04

Fixed in: no fixed release known

Safe to downgrade to: a release before 16.04

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-2019-9656?

libofx: downgrade or apply the listed mitigation; debian linux: mitigate or apply the listed mitigation; ubuntu linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-9656 being exploited?

CVE-2019-9656 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-2019-9656 affect?

CVE-2019-9656 affects libofx, debian linux, ubuntu linux. Severity is high (CVSS 8.8). An issue was discovered in LibOFX 0.9.14. There is a NULL pointer dereference in the function OFXApplication::startElement in the file lib/ofx_sgml.cpp, as demonstrated by ofxdump.

How urgent is CVE-2019-9656?

Priority 61/100. High severity; Public exploit reference; On your watchlist

Software pages

Ubuntu vulnerabilities · Debian vulnerabilities

Related CVEs

CVE-2017-2816 HIGH 8.8 DOWNGRADE MITIGATE An exploitable buffer overflow vulnerability exists in the tag parsing functionality of LibOFX 0.9.11
CVE-2017-14731 MEDIUM 6.5 DOWNGRADE ofx_proc_file in ofx_preproc.cpp in LibOFX 0.9.12 allows remote attackers to cause a denial of service (heap-b

References

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