How severe is CVE-2017-8847?

CVE-2017-8847 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2017-8847 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-8847?

CVE-2017-8847 affects Long Range Zip Project Long Range Zip. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-8847?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2017-8847 published?

CVE-2017-8847 was published on 2017-05-08 and last updated on 2026-06-17.

CVE-2017-8847

CVE-2017-8847 is a medium-severity vulnerability in Long Range Zip Project Long Range Zip with a CVSS 3.x base score of 5.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 4.3
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-476
Affected product: Long Range Zip Project Long Range Zip
Published: 2017-05-08
Last modified: 2026-06-17

Description

The bufRead::get() function in libzpaq/libzpaq.h in liblrzip.so in lrzip 0.631 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted archive.

Frequently asked questions

What is CVE-2017-8847?: The bufRead::get() function in libzpaq/libzpaq.h in liblrzip.so in lrzip 0.631 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted archive.
How severe is CVE-2017-8847?: CVE-2017-8847 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2017-8847 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-8847?: CVE-2017-8847 affects Long Range Zip Project Long Range Zip. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-8847?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2017-8847 published?: CVE-2017-8847 was published on 2017-05-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:long_range_zip_project:long_range_zip:0.631:*:*:*:*:*:*:*

More vulnerabilities in Long Range Zip Project Long Range Zip

CVE-2018-10685 — Critical (CVSS 9.8): In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in the lzma_decompress_buf function of stream.c, which…
CVE-2021-33453 — High (CVSS 7.8): An issue was discovered in lrzip version 0.641. There is a use-after-free in ucompthread() in stream.c:1538.
CVE-2017-8844 — High (CVSS 7.8): The read_1g function in stream.c in liblrzip.so in lrzip 0.631 allows remote attackers to cause a denial of service…
CVE-2018-11496 — Medium (CVSS 6.5): In Long Range Zip (aka lrzip) 0.631, there is a use-after-free in read_stream in stream.c, because decompress_file in…
CVE-2023-39741 — Medium (CVSS 5.5): lrzip v0.651 was discovered to contain a heap overflow via the libzpaq::PostProcessor::write(int) function at…
CVE-2021-33451 — Medium (CVSS 5.5): An issue was discovered in lrzip version 0.641. There are memory leaks in fill_buffer() in stream.c.

All CVEs affecting Long Range Zip Project Long Range Zip →

Other CWE-476 (NULL Pointer Dereference) vulnerabilities

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Browse all CWE-476 (NULL Pointer Dereference) vulnerabilities →