CVE-2019-10882· NVD / CVE Program· CNA airbus

Netskope client buffer overflow vulnerability

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: 0.42% (FIRST EPSS).
Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
Fixed version: Netskope Netskope client 62.
Severity is disputed: the assigning authority (CNA) scores it 5.5, NVD 7.8.

Low priority for now. Upgrade to Netskope Netskope client 62 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

The Netskope client service, v57 before 57.2.0.219 and v60 before 60.2.0.214, running with NT\SYSTEM privilege, accepts network connections from localhost. The connection handling function in this service suffers from a stack based buffer overflow in "doHandshakefromServer" function. Local users can use this vulnerability to trigger a crash of the service and potentially cause additional impact on the system.

HighCVSS 7.8 · v3.1—No exploit Fix available

Published: Sep 26, 2019
Updated: Jun 16, 2026
EPSS: 0.4% · 35th percentile
CWE: CWE-120

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 31 / 40 · 7.8 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.4%

CNA vs NVD score

NVD: 7.8
CNA · airbus: 5.5; 2.3 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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

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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.

Vendor	Product	CPE
netskope	netskope	cpe:2.3:a:netskope:netskope

Affected versions

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

netskope netskope57 and later · before 57.2.0.219
netskope netskope60 and later · before 60.2.0.214

Versions reported by the vendor

Affected version ranges reported by the assigning authority (airbus). Independent of NVD's CPE analysis and usually ahead of it.

Netskope Netskope client
- Netskope client 57.2.0.219, Netskope client 60.2.0.214not affected
- 54 and later · before Netskope client*affectedfixed in 62

Same product

netskope: all records

Other highest-scoring records for the same primary product.

CVE-2020-24576Netskope Client through 77 allows low-privileged users to elevate their privileges to NT AUTHORITY\SYSTEM.
36Monitor
CVE-2023-4996Local privilege escalation
35Monitor
CVE-2024-7401Client Enrollment Process Bypass
34Monitor

Published before and after this one in the same product

Later →CVE-2019-12091Sep 26, 2019 · Netskope client command injections vulnerability
31Monitor
Later →CVE-2020-28845Nov 20, 2020 · A CSV injection vulnerability in the Admin portal for Netskope 75.0 allows an unauthenticated user to inject malicious payload in admin's po
31Monitor
Later →CVE-2021-41388Jan 4, 2022 · Netskope client prior to 89.x on macOS is impacted by a local privilege escalation vulnerability.
31Monitor

Remediation

Which version to upgrade to

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

Product / package	Fixed version	Source
Netskope Netskope client	62	Vendor (CNA)

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.

No commit or PR link among the references.

Credits

All researchers

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

Julien Lenoit, Benoit Camredon, Mouad AbouhaliAirbus Security Lab.

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

Someone with local access to the system can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: high · data can be read
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: High
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-primary

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

The bug in code

The whole CWE-120 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1char buf[256];
2memcpy(buf, pkt->data, pkt->len);

Fixed

1char buf[256];
2if (pkt->len > sizeof(buf)) {
3  return -EINVAL;
4}
5memcpy(buf, pkt->data, pkt->len);

Attack context

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

Attack patterns (CAPEC)

ATT&CK techniques

—

Change log

Fix✗ → ✓Sep 28, 2026, 10:08 PM UTC

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References

airbus-seclab.github.io/advisories/netskope.html

Show all references (2 more)

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

All records