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NVD / CVE Program· CNA mitre

CVE-2019-13173: fstream before 1.0.12 is vulnerable to Arbitrary File Overwrite.

Noroxi assessment

Priority: Monitor (action score 31/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 2.4% (FIRST EPSS); higher than 84% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: node-fstream (Debian:12) 1.0.12-1; fstream (npm) 1.0.12; nodejs8 (openSUSE:Leap 15.0) 8.15.1-lp151.2.3.1.

Low priority for now. Upgrade to node-fstream (Debian:12) 1.0.12-1; fstream (npm) 1.0.12; nodejs8 (openSUSE:Leap 15.0) 8.15.1-lp151.2.3.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

fstream before 1.0.12 is vulnerable to Arbitrary File Overwrite. Extracting tarballs containing a hardlink to a file that already exists in the system, and a file that matches the hardlink, will overwrite the system's file with the contents of the extracted file. The fstream.DirWriter() function is vulnerable.

HighCVSS 7.5 · v3.0—No exploit Fix available
Published
Jul 2, 2019
Updated
Jun 16, 2026
EPSS
2.4% · 84th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 2.4%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

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  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
fstream projectfstream

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • fstream project fstreambefore 1.0.12

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12node-fstreambefore 1.0.12-11.0.12-1
npmfstreambefore 1.0.121.0.12
openSUSE:Leap 15.0nodejs8before 8.15.1-lp151.2.3.18.15.1-lp151.2.3.1
openSUSE:Leap 15.1nodejs10before 10.16.0-lp151.2.3.110.16.0-lp151.2.3.1
SUSE:Linux Enterprise Module for Web and Scripting 12nodejs12before 12.13.0-1.3.112.13.0-1.3.1
SUSE:Linux Enterprise Module for Web and Scripting 12nodejs4before 4.9.1-15.23.14.9.1-15.23.1
SUSE:Linux Enterprise Module for Web and Scripting 15nodejs10before 10.16.0-1.9.110.16.0-1.9.1
SUSE:Linux Enterprise Module for Web and Scripting 15nodejs8before 8.15.1-3.17.18.15.1-3.17.1
SUSE:OpenStack Cloud 7nodejs6before 6.17.0-11.27.16.17.0-11.27.1

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
debian:node-fstream1.0.12-1 · Debian:12Package registry (OSV)
npm:fstream1.0.12Package registry (OSV)
opensuse:nodejs1010.16.0-lp151.2.3.1 · openSUSE:Leap 15.1Package registry (OSV)
opensuse:nodejs88.15.1-lp151.2.3.1 · openSUSE:Leap 15.0Package registry (OSV)
suse:nodejs1010.16.0-1.9.1 · SUSE:Linux Enterprise Module for Web and Scripting 15Package registry (OSV)
suse:nodejs1212.13.0-1.3.1 · SUSE:Linux Enterprise Module for Web and Scripting 12Package registry (OSV)
suse:nodejs44.9.1-15.23.1 · SUSE:Linux Enterprise Module for Web and Scripting 12Package registry (OSV)
suse:nodejs66.17.0-11.27.1 · SUSE:OpenStack Cloud 7Package registry (OSV)
suse:nodejs88.15.1-3.17.1 · SUSE:Linux Enterprise Module for Web and Scripting 15Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
high · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
High
Availability impact
None

Weakness class (CWE)

CWE-59 · Improper Link Resolution Before File Access ('Link Following')

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (4 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records